Welcome to YT. You'll love it here. Once you find this site, you don't want to leave. LOL !! Everyone has given you great advise. The chew toys, etc, but it will get better. It seems like it's about the 7-8 month mark that they start to get alot better. I have 2 Yorkies and a Yorkie/Poo. The yorkie/poo is the youngest (named Romeo) He is 8 months now. He is alot better. He just has soooo much energy when he gets with the others.
Anyways, Welcome to YT. Darlene