It sounds like you need a hug!
I'm sorry your knee is so sore and you're not sleeping. All the pain and anxiety have worn you down, you poor thing. You deserve a break but, for now, I'll just wish you a few hours of restful sleep.
I agree with Marian (newlybionic). Having a bad time with your original TKR doesn't mean that you are bound to have a bad time again with the revision. My revision was easier to recover from than the original surgery was.
This time, everyone will be better prepared. Make sure that you discuss your problems with pain medications with your doctors before the surgery and tell them that you expect to have your pain better controlled this time.
Ask about ice packs - if necessary, ask your husband to bring in your own, ready-frozen.
Avoid that incompetent nursing home, especially the nurse that hurt your leg with the wheelchair.
My mother used to tell me this when I got upset in the evening or night-time: "Things will look better in the morning." Often, they did, so I hope it's true for you, too.