Just saw your post on the Mary Sue thread, and all I've got to say is post it anyway. Serebii's full of awesome reviewers, so at the very most, you might be told (probably a little on the firm side but nothing too offensive-like) about Sues and how to avoid them. If that happens, you'll learn what to do and how to fix things up and be a better writer. Sweet deal, right?
On the other hand, you've also got the chance that your character's perfectly fine. One thing I can't really say on the thread (because it's really my personal view of things) is that the definition of a Sue's pretty simple. They're just characters who rape the laws of the world they're plopped in (as in, scientific laws, canon -- including characterization, actual laws) just so the entire story can revolve around how awesome they are. That's what's really meant by godly. If your character can make reality its dog with her special powers or get into the pants of your favorite character or happens to be loved by everyone (or at least happens to be the object of jealousy by anyone who can't stand how beautiful she is/the fact that she can get into the pants of ____) or some combination of the above, then you've got a Sue on your hand.
I guess what I'm trying to say is don't be too intimidated. You'll be fine. b)'')b