Medical research and science? Yeah. 3 years undergrad and 2 grad school, at a research university. One year between them, where I taught myself advanced statistics, experimental design, and Linux system administration. Undergrad was just a blur of studying and exams, but after that it was a bit better.

Long story short, medical research is a surprisingly complicated way to be poor. Salaries are way lower than I thought. I could have earned more money just working in retail, and the hours were worse (e.g. the clinic was always open during a clinical trial).

I also co-founded a tool sharing nonprofit and taught myself electronic engineering and some software, starting in grad school but continuing until I emigrated. After I got here, I just sort of took the first job I could get, so no initial studying for that one. I started studying software engineering more seriously starting around then.

I study around 2-3 hours per day.