In puppyhood, excitement can be expressed in few ways. Biting and barking and spontaneous peeing are the worst expressions.
I agree with Reno that you have to establish yourself as the alpha from the word go.
In a dog pack, the submissive language is to lie down and expose the belly and throat. I do this (mine are 4 yrs and still sometimes..): Make her lie down and hold her on her side in this prone position until she stops. You will have to hold her neck and rump until she settles. You may need to speak calmly to her for a moment (try to choose a key word or phrase). When she is calm, stroke her, let her up and praise her. If she reverts to a playful nip, repeat the process again immediately and each time she behaves in the manner you want to correct.
You may have to repeat it until you think she'll never get it. Eventually, she will calm and you will be able to let go, but make her stay until you stand up. She must have the feeling at all times that you are the leader, not mean, but firm and having expectations from her.
Never make this a game and never express anger when she is in this prone position.