I have a 9 month old puppy. I have had her for a while and she just recently started biting me and only me. She does it in a playful way and she is normally a very good dog but when she gets exited or scarred she always goes after me. I have tried to train her not to by telling her to sit, yelling at her, walking away, hitting her nose, tugging her collar, and trying to intimidate her. I have a feeling she will grow out of it, but I can't figure why I'm her target. It's like she treats me as if I were a dog. And tips? (Please don't tell me just to ignore her, I have tried that bu always end up getting more hurt)