She is so darling.....
I am glad you are giving it some time. In my experience it takes about 2 weeks for the "Yorkies" to except one another. So don't throw in the towel just yet...
Keep things simple, keep her contained until she gets the potty down.
I use Peanut Butter Chips from the baking isle to do potty training (Treat Reward & Positive Praise)