GO TO SLEEP!!!!! I'm sorry, I have a friend with insomnia and she's going through the same process as you. Only falling asleep for a less than and hour before waking up. I wish I could hug, but I can't because 1 I don't know where you live and two my back is in serious pain. Just know You're not the only one that's suffering from something.
P.S.
If this wasn't helpful, I'm sorry ;-;