Regulus/Sabrina
Aren't you forgetting that you know someone who can just conjure food right to your room? And I hope it doesn't last much longer. I mean, I'm all for body acceptance, but it's hard to look sweet and innocent when nude.
If what the other version of you endured before getting here is true, then I empathize with you on the whole drinking corpse water thing.
The Weird was one of the Eldritch Horrors from back home. The hotel went to this sort of alternate New York City, where things were attacking people. The Weird was there, and the only way to kill it is to dehydrate yourself when it possesses you. Anyway, long story short, I beat it but killed myself in the process.
I believe John Constantine is or was working on a way to keep people here. I'll check with him to see how that's going.