Hi and welcome to the forum!
Your Daisy Mae is the same age as my Mandie. Yes, they can be stubborn and quite the divas, huh? Mandie is my first Yorkie so she is training me well
The only tip I can give (being as I am still learning with you) is get little treats and work on some tricks and obedience things. From what I've learned..their stubbornness is more due to them being so smart. Use that smartness. I'm starting to do this myself.