My parents, peers and teachers ruined school for me. All it was in my mind was a competition to be better and smarter than The rest. I hated that. School came with tons of pressure and deadlines and no one seemed to pay attention to my unique or less common learning style. Instead I was just pressured non stop to keep up with the rest, adapt to the conventional learning style and constantly reminded that I will fail in life if I don't finish school and go to college too. I eventually gave up, stopped caring and dropped out. School was terrible for me. Ever since day one. But now that I know myself and don't feel overwhelmed by the pressures of society, I'm on a good path. I'm nearing my 30th as well.I've always underachieved in school, largely due to trauma I think. But just like "knowing" who my favorite Ninja Turtle was, I think as a kid I always felt physics was what I was most interested in, and would be the best in - even better than something more "macro" and real-world like biology, which is considered easier for most people.
I'm almost 30 now... so I hope if it's right for me I can get into it in the next year or two.