Congradulations on your new Yorkie! My BD was Oct.3 , very close to yourse, but, I am much older..
You had a good list started for your new yorkie. I believe you have brought her home by now. How are things going?
I think it will just take some time to bond and give lots of love and praise. Your little one will need to feel secure in her new home which can take some time. Plenty of attention and spending time will help you Yorkie out, and feel confident.
I got mY Suzi when she was A baby, so I do not have suggestions for rescues of older Yorkies. 2 yrs. old is still young, and i believe she will adjust well!