Hey,
Welcome and I only want to offer one bit of advice with your new puppy, keep things positive, all the time. Ensure that you always reward good behaviour, ignore the bad stuff and never punish your Yorkie. And never ever pay any heed to the theory of dominance or pack leadership. Yorkies are far too clever to think that they are wolves
Whenever you decide to have a new pupster it will be wonderful, hard work but every minute will be worth it! Enjoy ..