Personally, i grew up cycling, learned a lot from my dad, and have learned a lot from trial and error (mostly the latter) over a couple of decades. Continuing e

Personally, i grew up cycling, learned a lot from my dad, and have learned a lot from trial and error (mostly the latter) over a couple of decades. Continuing education comes from the Park Tool Videos, bicycles.stackexchange.com, and reading threads on random forums started by people with the same problem as me. I suspect an organised person could learn much more efficiently than this. One pitfall to watch out for is that in cycling, everyone has their opinions, which they will proclaim as absolute truth. If you're just following one person, it can be hard to distinguish universally agreed common sense from opinion.