Does he spend time with you outside the x-pen? He needs to be loved and held and given attn. He is crying out for interactions. He definitely needs consistency, just like a small child. I have to say I'm a bit alarmed about a yorkie living in a garage.
I really do not want to sound mean, but have you thought about whether he is the right for you right now? Yorkies really need a lot of attn and you need to be thinking what is best for him. I know this is hard. My 2 came from another home, where their original owner realized that she couldn't provide them all they needed. We still see her occasionally, she even took care of the yorkies for me 2 mths ago for a weekend.
Perhaps you need to look at from is point of view rather than yours.
If you keep him, I would definitely look at outdoor training |