It sounds like she is anxious around other dogs. Have you tried to socialize her with other dogs? If not, this would be an excellent time to start, unless you want a dog aggressive pet on your hands. Start with a friend or family member who has a well behaved and laid back dog. Introduce you puppy first at a distance. Let her look at the dog, then give her a treat. When she barks or become over excited, remove her from the sight of the dog, give her a few minutes, then try again. Reward calm behaviour with a yummy tret and praise. Gradually you can get closer to the other dog/dogs until she is no longer anxious.