I'm sorry to hear of all the troubles you are having with your pup!
I read your other thread about your FIL living upstairs. Can't he take the pup out every couple of hours to relieve herself?
To be honest with you, if she came from a messy environment, you may never have a "clean" pup. I've listened to dog trainers complain a lot about pups they were trying to crate train just didn't care whether or not it messed and layed in it's own crap, because it came from a messy environment as a pup. These dogs were usually bought from a dirty back yard breeder. :( If your breeder was reputable, They would've made sure they started crate training and keeping things clean BEFORE you brought her home. My girl was almost crate trained, and I give my breeder the credit for keeping her in a safe, clean environment and worked on crate training her before she came home.
Also, it is impossible to ask your pup to hold it for longer than a couple of hours. It is not fair to the pup. Your pup has no choice but to mess in her crate. I usually advise those who work all day not to get a pup, but adopt an older dog that is already crate trained and can hold it longer.
I hate to say this, and don't take it wrong, but it is really for the dogs sake, but can you rehome her with someone who can be there during the day to train her? Only if you are unable to do this due to your schedule. A pup just needs someone there to let them out during the day and some time out of the crate. If something can't be worked out, than you should consider rehoming her to someone who is home during the day. I know it's sad, but it is critical that the pup gets outside to relieve herself. Puppies are a LOT of work and it is very important that you get her outside and go potty and on a schedule. That is the only way she will learn. Now is the time. You have to weigh things, and I think training is extremely important at her age. She needs to be getting into the habit of going out at a very young age. It is worth the risk if she is just in your back yard with you. I did it with my girl and she loves her crate and never messes in it.
As far as a schedule goes, you must let them out after each feeding until she messes. At her age she should be fed morning, afternoon and evening. After they eat they usually need to go potty. Also after drinking they need to go out as well. A pup can't hold it very long and you should look for signs like circling and sniffing before they mess. Get her out at that time and praise, praise, praise when she messes where you want her to. Always go outside with her on a leash when she goes potty.
I hope I've helped, I'm trying to be as honest as I can and offer advise. I hope you can get something figured out so the pup can go potty every few hours. If not, something has to change. I just wanted to point out that a pup of that age will not hold it that long in the crate.
I wish you good luck, please let us know how things go, k?
