Personally, I really liked school. Even high school. It would have been easier if I'd had more mental health resources, but I learned a ton and had a lot of freedom in terms of electives. I was taking college-level history courses as a senior in high school and absolutely ate it up.

The only nuisance was that I am a good singer and my parents forced me to skip a writing course and advanced biology my senior year because someone the chamber choir had selected instead of me decided to quit, and I wasn't assertive enough at the time to tell my parents no when the choir director called my mom and convinced her to make me do it, so my last semester I performed with the chamber choir and absolutely fucking hated every second of it. (Though I did put my foot down on weekend travel competitions, so at least I didn't have to give up weekends for that shit.)

My only other regret is of the time-travel variety. A former schoolmate was high up in the RNC when Trump was elected, and I wish I could go back in time and intervene somehow.