how do we get our female dog to stop barking at night?

we have 2dogs , male and female. both are fixed. well for the past 3 days the female dog would start barking ALOT at night. it usually starts around 11pm and ends around 4am. why does she bark? and how can i make her stop barking? because she’s keeping everyone up all the time. oh and the male dog doesn’t bark only the female dog.
theyre both 2 years old and are both shihtzus/bichons. if that helps..

18 Week Female Yorkie—She’s a NIGHTMARE!!!?

So in April I lost my previous dog due to a severe lack of intelligence…not on my part. My boyfriends friend was supposed to keep an eye on her while he went to the store (I was out of town) and she ran into the road and was hit…

After the wounds healed, I decided to try again. I am a dog owner, and always will be. I got a 12 week old Yorkie puppy, adorable. Well, my late dog was three, almost four so I had forgotten what it was like to have a puppy….She’s a nightmare! I am not one who gives up easily so I will try pretty much anything!

POTTY TRAINING- We have been working on this a lot! She has learned not to potty in her kennel, which is a start. But, as soon as I get home and take her out to do her business…she goes right back in the house and does it on my carpet. I allow plenty of time because I know puppies have to do it once or twice to clear it all out…I usually clap my hands or make some kind of loud noise when she does it…and then take her out immediately! Am I doing something wrong here?

OBEDIENCE-Again, nightmare! I crate her before I leave for work, and she bites the hell out of the bars and breaks her teeth! And then she begins to hypersalivate and screams bloody murder! I leave snacks, toys, food, water and music on to calm her down. I even got a pillow that makes a heartbeat sound! Its supposed to calm puppies I guess….This is a risk to her health, I am very tempted to give her a light sedative so she will be calm until I have been gone a while. She isnt screaming when I got home and listened from the outside, its only when I get inside!

ALSO! She is the most stubborn mule I have ever had! I tell her no, push her away and she does it again! She chews everything including the crotch of my panties!!! She has all sorts of toys, kong balls, treats, socks, stuffed animals to play with yet she destroyed my house plant (fake) WTF?

My other dog wasnt nearly this bad, what am I doing wrong? Is it just her breed because I have heard that yorkies are stubborn!

Beyond that, I am considering dog obedience courses…but that is an all time last resort!
*UPDATE* First of all for the jack A** who just trashed on me, get a life dude! I am not an irresponsible owner and I am trying, if I didn’t care the dog would be in the pound by now so don’t even dare try to judge me!
*2nd Update* I have tried the potty pads, and she doesn’t want anything to do with them. So I ditched that idea! Also, with her crate, she is okay with it when shes not locked up! She runs in and out of it, sometimes lies down in it…gets a drink or grabs a quite bite to eat..I don’t know, this dog is a bit on the neurotic side…the most complicated little thing I have ever had to deal with! And she gets distracted so easy too, and acts like shes not listening kind of like a teenager LOL with selective hearing!