You should! I have no artistic ability what so ever and its one of the few things I get jealous about. If you have some natural ability: I.E. if you just have the inclination to draw, do it. If you doodle everyday you'll get better and better. Then at some point you'll 'evolve' in a sense. Not because you think "I'm getting better, so now I must upgrade" like you're in an RPG. But because you're bored and want to do something different, like use colored gel pens or even those watercolor pens.
Just draw something, every day.