I would have gone after my passions and went to college rather than fucked around and tried to make people like me.
I wouldn't have given people the benefit of the doubt nearly as much. I'm very comfortable now with the fact that an overwhelming amount of people you meet are very much comfortable with their flaws and are never going to change. This would have extended to family. At the same time, I would have actually had a lot more faith in people. Most the people who were my friends weren't and most the people I thought had something against me were actually pretty chill.
I would've saved money a lot more when I could, even if it wouldn't seem like a lot.
Probably would never have moved back home. Even if things got very rough for a while, I think it would've been worth it in the end.
I'd actually make a move on the girls who were flirting with me instead of thinking life was incel twitter and I'd be cancelled or some stupid shit.
I would have bought less items and invested in a decent car and traveled for a while.
But most importantly, I would have just done literally anything faster. Life goes by too fast. Your head is sometimes your enemy. Just doing any small thing even if it seemed inconsequential would have been worth infinitely more than worrying about everything at bed for hours on end.
So in other words, everything

.