Welcome to YT
The tips for training are patience and consistency. Your baby is still too young to learn. You should be expecting good results not earlier than the 4-5 month.
The first command she needs to learn is "No". Potty training takes a lot of time and consistency from your side.
You need to observe her behavior and know when she is about to pee and poo. As soon as you see her preparing to take her to the special place.
When she does the job, reward her with a treat and good, positive talks.
Young Yorkies urinate about 10-12 times per day. You should always take her to the special place after she wakes up, after eating and after playing with her (her being excited).
Good luck!