Get a nice, large journal with quality paper and just start drawing things. Pick out some interesting objects and draw the same thing from multiple viewpoints.

Get a nice, large journal with quality paper and just start drawing things. Pick out some interesting objects and draw the same thing from multiple viewpoints. Your goal is to understand the structure of the object (or scene) well enough that you can translate the spatial structure to an optimal 2D representation. This is not always what you would see from a single viewpoint. In order to know the spatial structure, you have to make multiple attempts. You should enjoy looking at things, in the same way that a writer enjoys reading. Color is a freaky beast, you should probably get a copy of the book Color and Light by James Gurney if you want to understand how to make color work for you.