Congrats on being a new Yorkie mom!! Expect to have a lot of fun times ahead and hours of entertainment.
The key to reducing the amount of frustration on your part is
prevention. If you notice anything that you don't like (i.e. biting, barking, accidents, etc) do whatever you can to prevent it. If he's biting, give him lots of toys and yelp whenever he bites you by accident. If he's barking, start teaching him that barking is no good. If he's not barking yet, don't be surprised when he discovers his voice and has a love of hearing it. haha.. If he's having accidents, make sure you limit the space he's allowed to go to. etc etc...
Also, don't take anything for granted because during the first year or two. Though they may seem well behaved, they may suddenly take you in for a surprise just to keep you on your toes!
Enjoy the puppy-hood but be firm and consistent with training. I know it's hard, because they're so darn cute. But persevere!! You'll find out soon enough it's all worth it later on.
