I have the same issue. I have routines that I MUST DO before bed, before I leave to work, in the shower.
For me, I think it's just trying to take control of whatever aspect of life that I can. Since it seems that everything else is spiraling.
I have no idea how to defeat the need to complete your rituals, as I have the same issue. I hope you find something that works for you, I know what a pain it can be.