I have a 16 week old golden retriever. I got her when she was 9 weeks old from a reputable breeder. She has bitten me from the start, but it's started getting out of hand, because she bites ALL THE TIME. When I go to pet her, when I put the leash on her, when I'm just walking past her she'll lunge at my feet. And it isn't just nipping, she clamps down HARD. And it hurts. I don't want to have to get rid of her because she bites people or kids. I realize she's a puppy and teething and still learning, but she has lots of chew toys, which I will shove into her mouth when she bites (stopped working weeks ago), she gets fed enough, goes on 10 min walks 2-3 times a day, and gets lots of sleep. I have tried telling her NO, making a yelp, leaving the room, putting her outside to burn off energy, and nothing is working. It's honestly only gotten worse, and I want to stop it before it gets out of hand. I really need help!!!