How old is she? If she's a little young thaang she might grow out of it.Some snakes tend to be on the nippy side of the spectrum when they're younger and may or may not grow out of it.
If she's older, and if you're not afraid of being bitten or if you just wear thick long sleeves, you can try and get her to calm down by handling her more often than you would a more tame snake and see if that has a positive effect. Try and let her learn that she can tolerate you because you won't hurt her. If you go down that route, don't put her back in her cage if she tags you because she may learn that biting means home and that's no fun.
Good luck with your girl! If she doesn't end up calming down eventually, at least you'll have fun dodging her. You'll have ninja reflexes!![]()