Non-consensual dreaming I call it. Some good advice in here. I dont have much to add, but suffer from this sometimes too.

I try and idk, find joy and peace during the days, and fall asleep while intently keeping my thoughts on a subject I know wont hurt me, like house flipper 2 where I build houses often, so I just think about my plans for that, and if my mind veers off somewhere else I redirect it back to my project, until I am asleep.

Doesnt always work.