I also tried a brainwave program, and I still doubt it's working stimulating my mind finding the right sleeping frequencies, although it helped a few times. These days I am using melatonin, in a 3mg dosage, I am using it for a month or two now. At the end of the christmas hollidays my sleep finally seemed to return, feeling free of study stress, but the last 4 days the insomnia has returned, and I fall asleep in the early morning at 6 O'clock. I wonder whether what other people experiences are with melatonin, at what time do you use it, which dosage works best for U etc. I hope telling u this story, is able to give u some confidence solving this terrible problem.
Help is always welcome.