It's been a few years now so I can talk about it. More than a "few" years, actually.
My experience in high school was mixed, at best. It is where I learned some valuable real-world skills, and there were some good times. What I hated about it was being bullied, marginalized, physically abused, and if I had to do it all over again, I don't know what I'd do, because the alternative would have been ten times worse.