I completely understand being discouraged in search of a new yorkie to add to your family. It took me almost a year for my girls and I to come together.
Early on in my search, I spoke with a breeder who wanted more for her puppies than I had allotted myself to spend. I contacted her again (by accident

) almost eight months later... turns out, unforeseen circumstances arose that resulted in her need to rehome her older dogs. That's how Bella and Tillie became part of our family.
Follow your instincts, be honest with breeders about how much you are willing to spend, ask them if they have older dogs or know of other breeders you might be able to call, etc. (I wouldn't have known about her need to rehome if I hadn't asked). And I know it's hard, but try to be patient... when we feel rushed, like we NEED another pet, we are more likely to let our guard down and not follow our instincts.
All that said, I wish you the best of luck in finding another furbaby to join your family