How Do I Give Myself Permission To Let Go And Rest?

Hypervigilance is a big problem of mine. I also cope with hard times by getting into a sort of workaholic phase (as a writer). My sleep has been poor lately because of stress, sleep apnea (I have a sleep study next week), and allergies. But last night I couldn t sleep at all, so now I ve been up like 26 hours and counting. (I will also add that I took cough syrup with codeine in it last night, and it s likely that the codeine is somewhat to blame for how wired I am.) Anyway, this sort of... How Do I Give Myself Permission To Let Go And Rest?
https://www.myptsd.com/c/threads/how-do-i-give-myself-permission-to-let-go-and-rest.52789/