Everyone has given good advice.

Back up and pretend that you are starting potty-training. It won't take long to get back up to speed. Set him up for success by taking him out often, and allow/encourage walking and moving around so his peristaltic action is triggered. As Randy said, many dogs need a couple of movements. He can't help it if he's been brought back inside when the second one happens.

This is not "awful" or "disgusting" behavior. It's normal. Good for you that you don't berate the dog, but better if you don't berate anyone (including yourself). This is a normal process that's reinforced by consistent schedules and lots of praise for the dog.

Even adults (in fact, even seniors) have backsliding periods occasionally. Just back up and start over; it won't take anywhere NEAR the time it took first time around.

Don't forget that frustration and anger will communicate themselves to the dog. This is not worth frustration and anger! It's potty. Like eating and sleeping, it's just part of his life. If you take care to have him outside when he needs to be, then you can't fail.

I always say to start a simple journal. You'd be amazed at how much you can learn and what patterns you will see, even after only a week.

You can do this.

Thank you all so much. I woke up to a room full of pee (with no idea why) so I just cleaned it up and spent a little extra time with him outside. We're going to start from the beginning again and see if we can discover the patterns.

It helps me feel better to know that I'm not a failure because of this.

 Quote: Jennifer Locke

I woke up to a room full of pee (with no idea why)

Jennifer, did you mean a crate full of pee?

Jennifer,
You are absolutely NOT a failure.

When do you feed and water the little guy? Does he have free access to water 24/7?

I take water up at 6pm after Ember eats her meal and gets a drink. And I make sure she goes out before I go to bed, normally around 10:30 or so.

I do mean room full of pee but let me clarify that.

He peed in the crate (he's never allowed free in the house) and then splashed it all over the room.

He has access to his water until about 6:30 or 7 and then it's gone for the night.

He's doing a little better but we still have a long way to go. He's also started biting me very hard. Kind of frustrating because no type of correction (verbal or a pop) makes him stop. Just puts him into high gear. Tried redirecting and he just comes back for more arm.

If I live through this, I'm going to write this puppy into my will!

How often are you taking him out at night and is he getting enough exercise? My boy was still going out at least once at night at 4 mos or he would have an accident in his crate. I was setting an alarm during the day and at night to make sure he was getting out often enough that I could build on success. I thought he was never going to be housebroken and then, suddenly, he was.

Dear Jennifer: In my experience with my dogs, having water until 6:30 or 7:00 was just to late. By five I stopped all water. And I made sure I took Cody out many times before bed time. His bed time is 8:30. I also got him up early, by 6:30 and I carried him outside at first, so he wouldn't even be able to squat to potty. Then I ran him out side.
Maybe not giving your pup water so late may help. It is worth a try.
I am sorry you are so discouraged. Puppies with high drive are quite a challenge. My little guy has a horrible time not mouthing me when he wants to play or when I am just walking. Any thing that moves gets him going. But do not give up. Keep redirecting him, eventually it will pay off. Remember he is just a baby doing what pups do to each other. So, it will take time.
I am sure you will end up with a great dog, just keep being consistent. Cody now (when corrected for biting) licks me when he is corrected.(that is an improvment, like your pup, corrections only got him more and more excited) I have also learned that I can help Cody calm down by putting him in down or sit. Maybe give your pup something else to do instead.
In the beginning I was totally frustrated and overwhelmed with Cody, but as time as gone on, and we have been consistent, he is shaping up into a great little dog. I think the same will happen for you.
Don't loose heart.
GOd bless you

Some pups are more difficult to housetrain than others. I find that pups that started with a super clean environment from excellent breeders are much easier to housebreak than pups who came from backyard breeders or others who did not keep the kennel spic and span. My 6 month old GSD pup has never made a mess in his crate since I got him at 10-weeks of age.

I do not feed him after 5 p.m. and I stop water at 6 p.m. I also make sure he goes out at 10:00 for a final elimination period before he goes to bed. I get up at 5:45 a.m. and let him out. Young pups will usually be able to slelep all night for an 8-hour stint and hold it as long as you don't continue to feed or water them too late in the evening. The most common mistake made is allowing pups to drink water constantly and what goes in will surely come out.

If he continues to wet in the crate I'd take him to your vet and check him out for a health issue. He may have a urinary tract infection or a bladder problem where he can't control his urination. It is not common to have a pup urinate in his crate especially when he didn't do it when he was younger.

Jennifer,

When Hans was 4 months old the last person to go to bed would take him out to potty. Usually 10 or 11 PM. My son got up at 2:30 AM and 6:30 AM to take him out. During the day he was out at least every two hours.

To give you some perspective, Hans was potty trained well before he was 6 months old. We couldn't even start trying with our son or daughter before they were a year old, and they were well past 2 before they were anywhere near perfect and reliable

I pretty much followed Rich's schedule and my pup was also trained well before 6 months. Those 3 am potty trips aren't fun but they, thankfully, don't last long.