Wear condoms every time

Also it's okay to not know exactly what you are gonna do with your life. No one else actually does either, as much as they think they might.

Let go of any fear of others expectations for you as soon as you can. Explore what interests you and don’t let others stop you. People come and go, but they’ll come to you faster than they leave if you’re a confident and passionate person. You can only be that if you work on figuring out how you want to live and chase that life.

Travel if you can afford to, it’s an incredible way to learn about the world and meet different kinds of people. Look after your teeth.

The biggest advice I can give you is, you need to try to be social. It's easy to hang out with friends in high school because everyone's locked into the same building every weekday for 6 hours.

Once you're an adult, you no longer have that limitation. Even college is more of a "go to class for 2 hours a day then leave afterwards" type of experience. It's certainly liberating to not be forced to be someplace for long periods of time, but it also means that the primary reason that you hang out with your friends (ie, because they're already there with you) is now gone. It can make for a very lonely experience.

You need to go out of your way and actively maintain your friendships. Make plans to meet up at least once a week or something. Otherwise, you won't really get another chance to make deep friendships

Stay away from gambling sites. If you’ve got extra money and want to watch it grow, invest in Exchange Traded Funds (ETFs) with a low/no fee trading account. Stay away from meme stocks as well.

If you do invest, diversify your portfolio. SPY is very exciting but it’s heavily tied up in the AI bubble. Try to more international markets, clean energy, minerals, heavy industry. No matter what happens to the AI companies, we still need energy and resources to build stuff and keep our economy going.

Read about taxable and non taxable trading accounts in your country. Try to use those to avoid having your savings eroded by taxes. You will pay plenty of taxes on your income, so don’t worry about that!

Learn how to clean properly, stains especially.

Practice a few basic but yummy recipes (trial and error for which work for you) and get good at cooking them.

Remember everybody is living their own life at their own pace. Don't feel like you aren't doing it right.

Ask for help when you need it. Nobody can do it all alone.

Stay in contact with friends and cut ties with people that make your life worse.

Don't stop training, don't eat shitty food (at least, not daily), don't believe anything you hear or read and always double check it.

USE A CONDOM!

Take care of your body is the only one you have, use sunscreen.

Spend time with your parents and people you love they are not going to be around forever, do things they like.

You have time, don't rush into things. Don't think you are 25 you should have a family by now, life is not a race each person reach goals differently and not all have the same goals. Search what makes you happy and do it.

Worry only for what you control, if you can control it you can fix it, resolve it so look for solutions but don't worry about what is out of your control, you won't be able to fix it you have to accept some things are they are and learn to life with them being that way.

Do the things. Do them. Don't leave them until later. There are always things. If you don't do the now things, thinking you can do them later, there will be other things later.

Not doing the things only puts you behind, possibly forever.

Do the things.

If you haven't yet, question what being a man means to you, and what being a good person means to you.

You will, throughout your life, find those definitions challenged. How you respond to the first will help you to develop a stronger sense of how you relate to your gender, and how it effects the way you interact with yourself and the world. How you respond to the second determines your character, which is how the world will see you as a person, and with sufficient introspection how you will see yourself.

Keep growing. Keep learning.

Get to know yourself. What kind of person you are, what do you like, need and so on. Accept yourself as you are.

Sure, you can change your weight, learn new skills, become better at stuff and get stronger. I’m not talking about those things. Some traits just are the way they are, and fighting against them will only result in frustration, stress and sadness. Try to figure out which parts of you can be changed and which ones can’t. Treat them accordingly.

Vote!

Local, state, Fed.

If you don't vote, you have no rights to complain about how government is functioning.

Go to therapy if you struggle with mental health - the sooner, the better. Change gets harder the older you get.

Buy quality things that will last a long time.

Paraphrasing Terry Pratchett, the man who buys a good pair of boots will have dry feet for ten years, and the man who buys a pair of cheap shoes every year will spend more and still have wet feet.

get a dishwasher, always read contracts, be confident during interviews, hydrate your skin, do regular exercise

Start building credit if you’re in the US, but don’t treat your credit card like free money.

Don’t let yourself get addicted to alcohol (or any other drug).

Spend a decade commuting by bike if you can (rain or shine).

Get radicalized by the terrorists (people who just wanna have a nice safe society free of bigotry and hate).

Do not discard advice from older people because you think "the world has changed" and old people are out of touch.

ALL the advice that the older people in my life gave me in my teens about money/college/jobs/people/relationships was right, but I refused to listen to any of it because they were old and didn't understand my life.

Don't force yourself to learn every life lesson the hard way, like I did.

You'll probably learn everything the hard way...but I tried to tell you.

Internalize your rewards for doing something good - don't look for external validation from others that you are doing a good job. This is especially important in relationships. It's great to be appreciated when you do the dishes, but you should be able to motivate yourself to do it and feel pride that you are carrying your own weight.

Lots of good advice here and I am not THAT old but here are a few things I wish I had realized sooner in life (in no particular order or theme):

• No one really knows what they are doing, more experienced people usually have just made the mistakes already.
• There is a difference between being correct and getting someone to agree you are correct, the former is the most important and the latter is not always possible or desired and when to argue and when to let someone be wrong is a skill that takes practice.
• The less time spent worrying about what other people think of you the happier you will be and the easier life will feel. In almost all situations you spend more time thinking about whatever it is than the other person does.
• Always strive to be a good and like-able person but always remember that it’s impossible to be liked by everyone, sometimes people just won’t like you and that is okay.
• One friend you can count on is more valuable than 100 acquaintances, guard and nurture your valued friendships like your life depends on it because it might some day.

The biggest thing though, there isn’t one correct way to live your life and anyone telling you differently is probably selling you something. Always try to learn something from every situation and you will be fine, mistakes are a part of life. Anyway, hope at least some of that is helpful!

Treat others the way you want to be treated.

Read.

If you don’t know, ask or find out. Knowledge is rarely a Bad Thing.

Read.

Take care of your health. It gets a lot harder as you get older.

Read.

Seriously, go to a library. Pick something. If you don’t like it, return it for something else. If you do, get some more like that one. But don’t be afraid to branch out.

Edit to add: pretty much everything said here is really good advice.

Head to the Winchester and wait for adult life to blow over.

Who you are now, isn't likely who you'll be in 6 years. You'll change a lot over the next few years as you become an adult. Legally, becoming an adult is the difference of a day. But actually maturing into an adult takes time and effort. Yes effort, you'll meet plenty of adults who cling to their highschool self.

I don't know if alcohol is still placed on a pedestal like it was in my teens, but alcohol isn't that great. It's an expensive poison humans can sorta metabolize. It can taste good, but moderation is key. The point isn't to get drunk. As an adult who can drink anytime I please, is generally would rather just have water.

Now is a great time to get into a fitness routine.

Don't drink a lot. I've forgotten a lot of good times due to excessive drinking, and it's taken a toll on my mental health. I'm 35 now and trying to make some changes, but I've wasted about 15 years of my life just partying and being hungover. Not to mention the tens of thousands of dollars spent.

On a positive note: find something to volunteer your time doing. Even an hour or two a week is great. It's a great way to meet people, and there is so much good work being done by organizations who always need extra help.

Good luck to you dude, I know you have a bright future ahead of you!

The lattory is a 'Stupid Person Tax.' Meaning that stupid people throw their money at it because they buy into the feeling versus the logic behind it. "The overall odds of winning a prize are 1 in 24.9. The odds of winning the jackpot are 1 in 292.2 million." source

You had better odds of you, a sperm cell, fertilizing your mother's egg, than you do currently of winning the Powerball jackpot.

How much sperm is in semen? A typical sperm count may range from 15 million to more than 200 million per milliliter of semen

Let that info sink in for a moment.

Exercise, have a salad for dinner sometimes, be careful who you date and keep friends you can trust to tell you when you're fucking up.

Meaning can be found in pain and we all face that.

Don't try and "make it" by 22 and realize that those who appear to do so are faking it.

DONT DO IT!!

THERE'S NO TURNING BACK

Take care of your teeth. Many loves will come and go in your 20s and maybe even 30s, but if its a life partner you want try focusing on yourself and they'll appear out of thin air. Friends are important but not as important as inner peace. If a job offer 401k start investing as much as possible as soon as possible. Everyone is going through their own crazy messed up life so be kind. Puff, puff pass and enjoy your 20s as much as possible while not losing sight of your goals. Goals are EVERYTHING, set the achieve them and set them again. Heartbreak and death are integral parts of being human. It's important to sit with and process the pain as long as YOU see fit. Death will come for someone you love someday, don't let drugs or alcohol be your medicine

I just have one. Smart people learn from their mistakes. Wise people learn from the mistakes of others. You won't leave long enough to make all the mistakes yourself.

If you're going to go to college, go to a community college for your basics. Same classes, often smaller class sizes, and much less money. Just make sure the credits will transfer first.

• Take care of your teeth.
• Wash your butthole every chance you get.

The fact you had the initiative to ask this shows you're probably pretty intelligent. All I'll add is the perfect life doesn't exist. Do your best to enjoy it and be kind to people.

At that age, I was trying my hardest to figure out what I'm doing, to be together like the older adults.

I'm 39, I don't have a clue what I'm doing and I'm more together than most of my coworkers, many who are older than me.

We're all just trying to figure it out, so when you look up and think you don't know what you're doing, you're with everyone. And if you know someone who says they have everything together and don't have any issues, be wary as they likely have a lot of blind spots to their life.

Lift wieghts and or do some other physical activity. Its good to have two hobbies; a mental one and a physical one. The muscle you build now will be with you for the rest of your life, and its mucb easier to do it now than when you are middle aged like me.

Dont focus too hard on girls, just live your life and enjoy the experiences and relationships you build with all people; everything else will follow.

Travel, with a focus on the physically taxing things that are harder to do when you are older.

Invest what money you can, compound interest is real and it is the path to wealth (eventually).

Open an IRA (or your country's equivalent), invest as much as you and still afford to live. A tiny little discomfort in the beginning isn't the worst thing. That money will grow tax free for year until you retire. The more you get in early, the more compounding works in your favor.

Before you get a career, live and work in another country or travel on a budget for a year. See other places, meet new people, learn lots of new things and get out of your comfort zone. Some people just walk or bike across a continent with a tent.

You won't be able to do it later in life when you have a job, family and commitments.

Just be nice. And listen. Always listen and pause before you speak. It will solve sooooo many problems.