Everyone starts at the same point, many great artists would've drawn like you at your age. You'll only get better if you practice so if you want to get better, practice. You don't need special classes or anything. I can't say I've sat in a proper art class myself xD
Dogpaw, I wouldn't expect for people to buy your stuff immediately. When I first started doing commissions, I opened them up twice without having anyone wanting to buy anything. So just go back and improve. That's the best you can do. No one appreciates it now, but when you come back with super awesome skills, they'll be sorry xD
Anyways, I do think a lot of people on this thread are being a tad mean. Dogpaw's spelling has nothing to do with his/her ability in art. Plus, dogpaw is still a kid. I doubt everyone was completely perfect at spelling when they were 9 (even if you were awesome at spelling when you were 9, I don't care. I used to get 0s in all of my spelling tests. I understand Dogpaw's situation and you're being hurtful). Back off, he/she is still quite young and I think that if I were his/her age and saw your comments, I would be very hurt. So just be a tad kinder alright? It's not very nice to pick on people, especially children.
By the way 0FallenLeaves0, it's spelt 'assistant' not 'assistent'.