Training a Yorkshire terrier, as with all dogs, takes persistence and a willingness from the owner to lead your dog in the right direction, and not get led by the dog.
This article is going to review 3 quick tips to make sure you are maintaining control of your dog training.
Tip#1: Maintain your position that you are the Alpha dog.
This is fairly easy to do, being that your Yorkie is only a few pounds.
They already have a sense of being inferior, but sometimes, their attitude is much larger than their physical being.
Tip#2: Do not overly praise the dog.
I know this sounds contradictory to the praise your dog and love them theory, and to an extent, that is true.
However, Yorkies have a tendency to wrap their owners around their little paws and manipulate them to "take it easy" on them, so to speak.
Please, reward your dog, but know when to stop.
Tip#3: Make sure your family is all following the same dog training guidelines.
If you do not have any, you better learn some.
Otherwise, what typically happens is the dog is so confused over what is right or wrong, or how it should learn a patterned behavior that it does not know exactly what you want it to do.
In summary, knowing your dog takes time.
Proper training does not normally happen overnight, but you can definitely do some things to quickly come up to speed.
My first recommendation would be to not reinvent the wheel.
Try to learn from somebody who has trained dogs before and get you up to speed quickly.