We're all humans. In some way, shape, or form, we all feel helpless about one thing or another to an extent. People are poorly built for independence, especially if talking about in the form of single person homes, nuclear families, and jobs that involve a routine that's set in stone. There is no such thing as complete soundness of mind, and parenting without the co-parenting help of the village is a huge balancing act. We are also often caught off-guard by the sheer complexity of some of the matters we face as well as those others face, with many moving parts we can piece together while others are perpetually in our blind spots. All those people you mention who go partying and drinking, although they may argue they're living to the fullest in our crude world, take their perception of how experience works for granted. I've seen people whom everyone looks at with awe as the person soars to new heights before they are hit with a chronic medical condition, the one thing money can never protect you from. I myself have been reminded of my own unchangeable limits, having just the right set of circumstances that take my friends and family away from me, being pressured into resuming a past relative's residence which moved me away from friends by a few hundred miles and invoked jealousy in my remaining family members. The truth will always be that humans will find it more ideal to be unconditionally generous and interdependent onto each other, without the cue of any system of thinking, which will be especially true as the complexity of existence increases and our intelligence grows which will cause more mental disorder to arise. I might have anhedonia, the medical community's name for what comes off to them as a lack of motivational feelings towards the world, but I still can feel when the world lacks what it suffers without.