Hi compnow, how are you? I understand how frustrating the life is with sleep deprivation. I feel you might have taken quite few medications for your sleeplessness over a period of time. Have you had a sleep test and evaluation by sleep doctor? Ambien is good choice for treatment of insomnia, intended for short-term use. Elavil/Endep can be tried if you are not comfortable with Ambien and it is a non-addictive drug. Try to relax and plan a healthy sleeping habit on a long-term basis. Avoid coffee/tea, smoking, alcohol and a bulky spicy meal at nights. Do regular casual exercise, concentrate on some fine work like reading a book, listening to soft music, have warm shower and a gentle body massage prior to sleep. If you still do not feel any improvement, consult a sleep specialist and get sleep test done to know present status of sleep pattern. Take care and update on your progress.