I know you don't feel like hearing advice right now. But if you read this, I just want you to know I've been there too.
You're in that place where you've done everything humanly possible and advice is just piling on more things you "ought" to do and you just can't. So no, I don't have advice.
I'm praying for you, hon, and even though you don't believe the same, I believe my God loves you and wants peace for you. So while I can't be physically present for you, I'm asking God to be.
(I reserve the right to delete comments that offer advice or identifying info or guesses or anything short of unqualified support)