That there is your problem. Circadian rhythm is a real thing.

Yup, ok, that’s like trying to sleep on extra super difficult mode. Follow all the advice you like on here, but definitely get yourself some sleep meds. A therapist can prescribe them for you, and they’re typically easier and cheaper to find/schedule than a regular doctor.

That’s unfortunate. Hopefully you can at least have a set schedule on most nights since you can’t do it every night.