Hey dude don't stress this much that lit exam fucked the entire state over so the bell curve is more than likely to put you at a 25 AT LEAST. Btw, what was the prompt and how did you respond to it? This may just be paranoia and from a third party perspective you wrote a relevant response!!
This is easier said than done, but there's nothing you can do about exams now. Instead of finding stress in this, try to find liberation. But I feel u cuz I remember walking out of the lit exam feeling fine and by 10pm that same day I was crying cuz I just kept dissecting everything I wrote and how I could've written it better and shit what if this is the worst essay I've ever written in my life ?! But you just gotta stop yourself from doing that cuz it really is not healthy. Do something you find fun to distract yourself. Lit was a crazy ride but try to reflect on what you got out of it besides a grade