kaylie535, your situation sounds really similar to mine. I purchased a hard acrylics went off the Internet, and had my dentist custom fit into my teeth, and I wear it at night and when not eating during the day. I feel so much better now. The downside is that it took many years to figure out the right combination of splinting. The first few they made for me actually made the pain worse.
To answer the questions of the original poster, hypnosis is probably the only therapy I did not try, because so many people told me that it didn't do them any good, or only lasted for a short time. The main thing is to get your jaws position comfortably, and for people like me with dental problems, splinting was the answer. Search online for acrylic splints, and see what's available. Just about any can be customized for you.