Why does everyone have to be embarrassed about being new, that's all I wonder... heh...
Lessee, Lighty... yep, you sound 13.

Don't worry, you'll grow up. At 13... um... well, back at thirteen I was obsessed with Lord of the Rings, actually. I think I was fifteen when I went into a brief anime/manga obsess stage, but where I am we got no TV so it was limited to a few manga I grabbed from the library and how to draw manga books. Ironically, though my art style's more realistic now, I think it really helped to start with that cartoony base. If you study it well you can learn a LOT from manga, so don't let people diss it. Online it's a bit different than 'I'm the only one at school who likes Japanese stuff', it's more like 'if I throw a stone I can hit twelve posters who draw Nurato fanart'.

At 13, you're not expected to have art-school skillz, so don't worry. This is the best time of your life to learn. Best of luck and making friends too. Tons of anime fans around and manga fans so you'll probably have no problem with that.
Welcome to ComicGenesis.
Irulzlol111.
With a name like that, why are you blushing?

Welcome to ComicGenesis.