/sci/ - Science & Math

How do I... learn?

There around 10 topics that I am interested in, yet I never really learnt how to learn about subjects beyond school days. In school you get spoon fed with books and teachers already know everything, but after school and collage I am sort of lost?

I'm interested in language learning, nutrition, weightlifting, analysis, math, architecture, music producing, physics, space, technology and boxing/general sport.

Some of these are simple to learn about. For math I just start with university books and move upwards into more advanced level beyond that.

For language learning I expose myself to the language 24/7 and learn alphabet. Then start reading elementary tier books and move higher and higher to advanced books with advanced literature.

For physics it's books again. Then later on no clue.

Technology wise I read up on technological news, books, 4ch and reddit can be okay too. If there is a term I don't know I can probably look it up and I will get a general idea of what it means.

For everything else, I have no fucking clue. I was thinking maybe about starting on wikipedia, then books and documentaries. When I get base knowledge I can skim through blogs to see if they are talking bullshit or not. For some I can research studies too.

Just help me out guys, I'm a fucking lost child.
If you think I should make a separate thread with my issue, let me know.