My routine was to get up and walk to school, attend homeroom to show I was actually there then just take off to go downtown to said hacker/drug dealer's warehouse. There was always a ton of people there it was a defacto hackspace and party house. I learned more hanging around those people for a few months than I did all of high school. When my parents gave me an ultimatum I decided to go squat with a bunch of street punks and just hang around the hackerspace all day.
I probably would've been satisfied going to some kind of engineering or compsci program after school if it had existed at the time. I liked hanging out with my friends in high school and was glad I still went to be social but it would've been great if school was only a few hours, and the rest of the day I could have pursued my interests in electrical engineering at a non institutionalized type environment. Hanging with my friends was fun in school between and after classes but everything else about it felt like prison. Somebody you don't elect hands you arbitrary rules to follow and you just end up feeling trapped. I'm sure plenty of other kids don't mind high school for a few hours a day but would much rather spend the bulk of their time learning something else they're actually interested in. I have no idea how this can be accomplished but a full day slogging through half a chapter in a textbook on a subject you have zero passion about isn't it.