I can’t sleep

So I have had really bad insomnia since I was like 12 due to some shit I was going through at the time. I got a handle on it when I was 16/17, but ever since I moved in with my partner it’s been getting pretty bad again. They’ve been doing their best to be understanding but clearly don’t get it and aren’t super thrilled about my admittedly intense bedtime routine. I’ve tried parring down my routine, but it’s made my insomnia get pretty bad again. We’ve had countless arguments discussions and attempts at reaching a compromise about it and just can’t seem to do it. I love them and I want to get better bout this but I’m loosing my mind staring at the ceiling at 3am again. What would you do in my scenario?