I forgot to add on my post that while Chloe was easy to train to potty pads ( I got lucky I guess) her sister was NOT !! My sister and I both got our yorkies at the same time ,from the same litter , and from a reputable breeder .We train them the same way but hers just won't do it. She will look right at you and pee on the floor , and I swear she is smiling when she does it !
So all dogs are different even yorkie sisters that are trained the exact same way! Don't give up , It will work eventually

Ours are almost eight months now , and hers is just stubborn to a fault ,some just need to be helped longer.
Good luck