Potty Training 3+ Year Nightmare

Hello! I rescued an 8 pound poodle/terrier mix. She originally came from Texas to Nebraska.

I am having the worst time potty training her. I take her out 4x a day. 7:30 to 8:00 am, 3:15-4:00 pm, 7:00pm, and then 9:00 to 11:00 pm. She pees in her kennel at night and a lot of times during the day when I’m at work. I’ve tried limiting her water in-take in the morning and night but it doesn’t seem to do much. I’ve tried rewarding with treats when going potty outside as well. I’ve done training treats to delicious expensive ones.

I have to bathe her daily and I’m sick of it. I have to clean her kennel daily, I use Zep Urine spray to remove the urine with enzyme remover. I’ve put her in my spare bathroom a few times because I have no energy to clean her kennel daily. But she makes a huge mess in the bathroom. I’ve tried no bedding in her kennel and it works sometimes but then she’s found out she can pee and drink it so that cycle has started. She also stomps around in her pee and it gets all over the floor and wall where he kennel is. She has separation anxiety and grabs her kennel with her mouth to shake it. She’s got no hair, scars, and a broken tooth from it. Her other 3 canine teeth aren’t going to last much longer either. I’ve also tried calming treats and prescription meds that didn’t work.

I’m at my wits end and I’ve been very close to rehoming her. Also, this has been going on for 3+ years. I don’t have funds to go to some pet trainer.

My last resort is to add in an additional potty break around 2:00 and to stick a potty pad in her kennel for the night. I’m also worried she’ll eat the potty pad because she scoots her kennel around when she shakes it and if she gets close to fabric she will do all she can to pull it into her kennel.

Please help, I’m desperate.

She has zero cues to go outside.