actually i'm fine that way starting with pencil, my friend also drew Optimus Prime using pen only and that makes me crazy just to see how details it is because I can't however I tried lol, i'm a left brain and not suppose to become an artist but I forced my self in art anyway lol
and the weirdest thing is when I can't finish my artworks it make me stressed, but when I finish it nothing more killing my whole stress than the artworks itself, maybe I gotta write a post about it someday Haha! :p