How you tackling learning?

[Zearthus]

I recently came to the conclusion that, if I want to create something of my own is better off learning more subject than sticking with one for an entire month. Of course learning differs per person to person. Each has their own unique way of solving this. But hearing how others went about doing it, can give you some examples of things you could apply.

So I would like to ask how you tackling learning? Especially with the diversity of subjects you have out there:
Composition, Landscape, Anatomy, Light & Shadow, Color and so on, Perspective etc.