Probably sex, for me.
I’d just do it with someone who wasn’t who I originally did it with because she wasn’t great in bed. The entire moment itself was just embarrassing for the both of us, moreso for me because of the time it last for which wasn’t long and just her seemingly doing it to get it out of the way. There was no passion in it, it was just a matter of “oh lets get you not a virgin anymore” deal and I felt it was tainted.
I’d play Xenogears, Chrono Trigger, and Final Fantasy 7. Going in blind was amazing.
My past relationships before my wife. We would have still broken up, but my behavior during those relationships were immature and selfish, especially during the tough times.
I’d also like a redo of school. I didn’t know that I have ADHD and some stuff that typically come with it, like depression, till recently. So I believe if I knew about it back then, my Mom and I would be better prepared.