I don't see how recanting old stories help's in my case, I'd like to point out that every individual is unique. Trying to hammer down a solution by fitting in a Biblical concept has never worked. I've looked at various verse to help me overcome possible demonic interactions, but this has never helped.I'm just thinking there has to be an overcomer's attitude if you're going to get victory over this thing. I've never faced what you're facing, but I have dealt with illnesses and all sorts of obstacles to my faith. NOTHING stands in my way, and nothing ever will. I won't allow it.
If you accept defeat, then the fight is over. I'm reminded of the man with a legion of demons. Surely his state was even worse than yours, and yet he got his deliverance.
P.S. Forgive me if someone has already bought this up. It just came to mind is all.
You have to see what's coming at you to find an a ultimate solution for victory. I mean if this was the kind of demon you were facing what would you do.