1 week on Carbamazepine, really bad derealization

Help! I've been put on Carbamazepine (200mg) for the really bad, several neuralgias I have.

Trouble is, I cannot stop dissociating/derealizing after being started on it. I'm legitimately not aware of my surroundings or pretty much anything.

I used to derealize/dissociate a lot as a teenager and in my early twenties and finding myself back here is pretty horrifying! I'm so disabled with the pain and fatigue that my brain was the one thing I could (sort of) count on, and now that's gone. I'm very sad because gaming was my one escape and I can't do that anymore.

Does anyone have any advice as to how to make this go away? Does it go away?

Please help. :( Thank you so much in advance.