There's basically two ways you can go as a beginner:

1) Play it safe. Practise the basic stitches until general holding the yarn and tensioning gets to feel more natural. For this, something like a dishcloth can be a good shout as even with a few beginner mistakes in it, it's still going to result in something usable. A scarf can work too but as Anna says, they do take a long time so they can get boring. Hats etc complicate things because they're in the round, but you'll be used to that from crochet so it's probably fine.

Since you are already a crocheter though going back to cotton cloths probably sounds insufferable which brings us to...

2) Jump in at the deep end. Find a pattern you really like, and just set about learning what you need to learn to get there. I wanted to make a whole jumper as my first thing, so made a sort of sample rectangle with all the stitches I'd need and then just went for it! Didn't quite fit in the end, but hey, the horrible acrylic yarn only cost about a tenner in total 😂

Behold my "first project" sampler rectangle, this must have taken me about a fortnight but it did teach me a lot!

Yarn and needles-wise it's similar to learning crochet. You want a light coloured yarn in something like worsted/aran weight, and generally a 5mm needle is a good place to start to work with it.

My first project was a dishcloth. Easy, fast, basic square, corner to corner, only one increase or decrease per row. Mostly just practicing the knit stitch over and over again. I did that until I had made so many that they were piling up. Then I moved to scarves, lol. To be fair, I was about 13 at the time. It was long long ago, lol.

A scarf is probably the best place to start. Easy stitches, straightforward pattern. Socks will probably work as a second project, but I wouldn't start there.

My first project was a garter stitch scarf. I picked a yarn and bought the needles listed on the band. Pros: super forgiving Cons: I had no concept of gauge so my second project (a hat) was baby sized.

I've become partial to wooden needles. I have metal and wood. Metal needles are so slippery that stitches slide right off (when you don't want them to). For some yarns, sliding right off is a plus but it is a matter of personal preference. I love interchangable needles which I learned about AFTER I built a fairly large straight needle collection. I almost never use my straight needles these days. Circular needles are more versatile and more easy to use when on a crowded commuter ferry.

Scarves are probably one of the first projects we were taught in school. And other things that only require straight pieces to complete like some traditional socks and tank tops. After that socks and hats are probably some of the easier projects! Hats are super fast to complete too.

Also watch YouTube videos at half the speed and copy their movements to learn the stitches and techniques! Very handy for me at least who learns best but copying and trying.

I mostly use 4mm 20cm needles for my socks. Size 5 for stuff like hats. Circle needles for scarves and blankets. But it depends on the tightness of your knit and your project and yarn strength.

I’m still new enough I can’t make needle recommendations, but my first project was a garter stitch scarf. 10 stitches on size 13 needles… yeah… that wasn’t much of a scarf.

when my mom tried to teach me to cast on for knitting I went cross eyed.

Similar experience to you with learning how to crochet. Right now all I can do is a chain stitch. And nothing else. No adding any height to the chain, just making a single long chain.

I learned to knit using this video: https://youtu.be/24lR2IRS57A?si=1oKzp88Kqgt2ZfgT

It's a classic garter stitch scarf, so very basic. But it's good for getting you in the groove and learning to do things like cast on and bind off.

As other people have said, continental knitting is probably the way to go if you're coming from crochet.

@Timecircleline I'd recommend a hat. It's quicker than a scarf and you learn lots more from it (eg: decreases).

Also, if you come from crochet, take a look at continental knitting! You tension the yarn in your left hand which is more crochet-like.

If a long tail cast on (probably what your mum was trying to teach you) was too much at once, try a knitted cast on: put a slip stitch on your left needle, knit it but don't slide it off, put the new stitch next to it on your left needle, repeat.