I agree with everyone else... Keep trying. Im having the same issues with Meka... she was doing wonderful at one point and then it was downhill. I never knew how much work, really goes into potty training these lil guys. Once they've "got it" you cant think thats it. You must stay on top of them!!! So now we're trying the crate training. It seems to be working... But, I can totally understand your frustration, because I've had Meka a year now and she still bugs out from time to time and I dont understand it

. My husband who's been around bigger dogs all his life has the same confusion...because in theory, it shouldnt be that hard... so it can get really frustrating and if I hadnt wanted this breed for the past 15 yrs and have a true love for Yorkies, I think I to might have given up a long time ago
Overall, you have to do whats best for you and your sanity