It is completely normal for such a young puppy to have to potty so much. The problems you are having is why many yorkie breeders do not allow their puppies to go home until 12 weeks old. The time between 8 and 12 weeks is a very important learning time. They learn bathroom habits, social interactions, bite inhibition, and puppy manners from their mother and siblings during this time.
I just googled the crate you are using and thats quite nifty.
A 9 week old puppy should be under constant supervision when out of its enclosed area not only for potty reasons but for safety reasons. How big is your washroom that the crate is in? If its too big of an area for a puppy her size that could be why she is pottying wherever she wants. Also she is just too young right now to "get it" on her own. Usually she'd be following her mother and watching where mom goes so she knows where its acceptable to potty. So without anyone to constantly show her where to go its going to take her a little while to remember and by "a little while" I mean a couple months. Do not give her free access to anything if you are not on top of her watching her every move. You need to set her up for success, not failure, so she will learn what is acceptable faster. Be patient and consistent. She will eventually learn.
When you do catch her in the act of pottying in an unacceptable area give her a firm but not scary "No" and then bring her to the pad to finish. If you don't catch her in the act but find the evidence afterwards there is nothing you can do. Just clean it up really well and hope you catch her the next time. Reprimanding her after the fact will just confuse her as she won't associate the reprimand for something she did an hour or even a minute ago.
As far as the biting goes it is something all puppies go through. At 9 weeks old the world is still new and they use their mouths to explore everything. They do not know that their pointy little teeth hurt. At this age they should still be playing with their siblings. During their wrestling matches if they get too rough and get bit too hard they will let out a loud sharp yip which alerts the biting puppy that what they did hurts. If the biting puppy continues to do it, then the other puppy will leave the game and not want to play anymore. So this teaches the puppy that biting and being too rough gets him no friends. You need to be that other puppy now. When she bites you or even puts her mouth on you at all, let out a sharp yip like she hurt you, fold your arms over your chest, and ignore her for a few seconds. If she's bouncing at you and still trying to play or bite while your ignoring her then get up and walk away. After a few seconds of her being good, then go back and play with her again. Repeat as necessary.
With clothes and bows, some dogs just never accept them and there is nothing you can do about it. Since she is still a baby she's probably wondering why the heck your putting things on her head and if they taste good. LOL What you can do is put the bow or sweater on her only for a few minutes at a time. Start off with a light t-shirt or harness to get her used to something being on her. When you have the bow or shirt on you need to distract her with treats or a game to take her mind off the "offending" object you've placed on her. She should eventually get used to them, but she may not. Some girls just wanna be scruffy tom boys no matter how hard you try to make them "pretty"
