As I am suffering high school and my family won't stop nagging me about graduating and hard work, I'm wondering if I would gain anything useful or I should not bother. (Probably gonna edit this soon)
Or better yet: should I go to a socialist country for college
Yes, while there are significant problems with the system, education is still one of, if not the largest modifier for personal mobility and life outcomes. You will significantly learn, grow, and change as a person, it is up to you to know what to do with that change.
Be warned. DO NOT apply for random degrees, you will burn out, destroy your mental health, and be miserable. Commit massive research and time to thinking about this question.
Also don't worry if you don't have it all figured out right away, it took me till the middle of my second year of college to figure out that I wanted to be a labour lawyer. That epiphany gave me purpose, meaning, and direction, but I still had to work hard up to that moment even if I wasn't sure where I was going.
On top of that last reason, take a broad range of General Education credits in your first year, this can even be done at local community colleges. Take English, Physics, Statistics, Calculus, Anthropology, Biology, Psychology, Philosophy, literally any meaningful classes that will let you get a taste of everything, even if you have already taken those subjects in high school. It will let you better decide where you want to go, and you will avoid pigeonholing yourself. Plus I promise you those classes will be radically different in college.