I think a little bit more information would help here - in what situations is she biting? Is it when you are petting her, doing stuff inside her cage, when she wants attention, or when you are sitting in her way? Is it when you try to pick her up or something like that? Does she seem upset or does she do it when she's content?
Depending on the situation she could be biting for a lot of different reasons, and we'd need to know the reason to help give you advice on how to get her to stop.
I'll mention though that like others have said, I had a rabbit before who would nip me if I was in his way and he wanted me to move, or if he wanted attention and I wasn't giving it to him. He never broke the skin but it still use to startle me when he did it.
A have a rabbit now who gives me what I call "love bites". She's a sweetheart of a rabbit and likes to lick me, and once in awhile while she's licking me she'll gently bite my skin. It doesn't hurt, but it can be startling.
For now, until you give us more information so we can hopefully help you better, try not to be afraid of her. Animals can sense when we are afraid and she'll play on that if she can. Remember that even if she does bite you hard, it will only hurt for a short time and it will heal. It sucks to get bitten, but it's not the end of the world. Don't let her know you are afraid of her. If she's being aggressive, you don't want to teach her that her aggression gets her what she wants.