Congrats on your puppy!
When we got out yorkie (he is 6 months now) we already had the no biting, domanice thing down. Our Boxer (6 yrs old) was a very hard headed puppy. He would bite and growl and chew alot (Boxers have jaws of steel). Anyway, when he would bite during play we would say no real quick and loud and end the game. When he would chew on the wrong thing we would say no and give him the correct thing to chew on (I think that it is better to get "toys" confuse them). When he would growl out of dominace we would pick him up right below eye level, tell him no, and wait till he looked away and became still. It is important to make sure that they become completely submissive before you let them go. Sometimes they will struggle for a minute or two. Also remember that a puppy needs time to learn. You are taking the place of it's mother, it is up to you to consitently tell them what they can and can't do. Hope this helps. After learning with out boxer our yorkie has been a breeze.