want2artstuff

I've always wanted to take an art class but never did, so I just would doodle in other classes instead, what I've developed is a serious sketching ability over the years but nothing more. I can really only do pencil work, I've tried working with colors but I cant grasp the flow or schemes.. and I have a hard time coming up with original work, I usually draw what I see in magazines or old cartoons and the like. I would really like to learn how to improve so advice is welcome!