Have you tried prescriptions?
I did a few years ago. They worked, but they made me feel drowsy all day.
You should see about modafinil. It doesn't induce sleep like other prescriptions. It induces wakefulness, but on the "come down," about 10-12 hours later, you get natural tiredness. You might have to jump through a hoop or two to get it, and the timing of the dosages is mildly inconvenient, but it's natural sleep you can dial in.
Just saw your response: You haven't used modafinil in the correct way to produce sleepiness. Have you considered giving it a correctly dosed shot?