I've also got this hard ass insomnia and just as I've improved the situation a bit by skipping an entire night of sleep and had one good rest where I woke up at the desired time (6-7 am) refreshed and wonderful.
The next night after that one, the ape mind decides to go full on oompa loompa on me. I know that I should just get up for 30 minutes and drink a tea or something, this would take the mind off the nonsense, but no! I'm so god stubborn that I still attempt to push through it, with it always ending up with me falling asleep at 4 am and bang up again at 10-12 if I'm lucky. I also have this thing when where I sleep for over seven-ish hours then it feels like I've been hit with a truck yesterday, which always happens...
Tried all the sleeping pills, some work and turn you into a zombie worse than you were before. Then there's the one that makes you do some funky disco sleep-walks, which for someone inexperienced in the sleep-walking ends up in cuts and bruises. Benzos just barely help with letting loose and are, in my opinion way too scary, with increasing doses god damn sudden blackouts and deadly withdrawals from long use.