Don't take this the wrong way, I am new at this too! But it sounds like you have to be a strong pack leader, from the words of Cesar...excercise her really good and be firm. You can use a water bottle or make sure you keep a leash on her and slightly pull it to the side when she does something you don't like. Most importantly you must lead her and not the other way around. when she bites, give her a firm NO, and walk away, no more play time...of course she still loves you, you're her mom, but if it continues, she will start to think she's your mom. I'm sure other experienced moms can help you, but I think the most important thing is to exercise her to wear her out then use treats to discipline her and then use affection.