Re: Getting past the biting?
It will sound counterproductive, but when she bites, pull her in snugly against your breast. This will be uncomfy for her, and in order to breathe better, will automatically let go of your nipple. If you consistently take this approach, she'll get the picture that biting mom isn't funny and the consequences aren't very comfy. I would say "NO" in a loud mom-means-business voice and this also helped us. However, if she thinks it's funny when you yelp, this might not work for you.
HTH. Not saying this is a sure fire thing, but it worked for us!