I usually just turn the doodles I like into patterns..........put them on the computer and clean them up. But you can get a small projector at craft stores and put your photo in it and it will project it onto a wall...........you can put your paper on the wall and trace whatever you want. Just an idea. My mom used to do this when she wanted to paint. Mostly just practice your drawing and before you know it your skills will improve. You can also google "free drawing lessons" and you can find many. Just follow along and you'll learn alot. There are videos even, to teach you.
Christina