It's rough and messy. But all drawings are learning experiences.
I figure if I can keep it up and at least draw one thing a day a year from now I'll see a big difference from where I started. So I will keep drawing.
The way I think about my drawings right now is that they aren't perfect, they aren't even really that great! But overall, they're not really that bad and do show a potential. The only way to bring out that potential is to keep drawing.