I am a customer there. I have been very happy with the information an service they have provided us for the last (I think) 5-6 years. Call them. They may have training classes or know where to send you for help. Good luck.
My opinion and I grew up with pitbulls I've trained and raised about five of them on my own buy teething toy a flavored one and what I would do is if they if that didn't work I would just flip them on the top of their nose every time they bite on something try that not hard but just kind of flick them on top of their nose or you can even do it on the bottom of their chin that's always work great for me but just make sure that he or she has plenty of toys to get her to stop biting
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