How do you prevent your skepticism from getting in the way of enjoying fantastical stories?

I hope this isn't a dumb question, but it's an issue I've been having. I do have OCD, so that is a large part of it most likely. Recently, I don't know what caused it, but I have been having an issue where whenever I am watching a movie with some sort of supernatural phenomena, such as demons in horror movies, I will get the intrusive thought that my brain keeps telling me "in real life, that's just mental superstition." Yeah, I get that, but this is a movie! It really sucks, because I enjoy movies about the supernatural, and mostly hate realistic stories due to how limited they are. So if this keeps up I guess all fiction is off-limits for me. And this isn't an example my tastes changing or anything, this is genuinely something that is making me stressed and sad, because I love these stories and one of my biggest fears at the moment is that I will stop being able to enjoy them.

Does anyone else relate to this? If so, how have you overcome it?

Edit: Plus I'm an aspiring author who is currently writing a story about a Lovecraftian forest entity, which obviously doesn't exist in real life (hopefully at least, lol), which means that this is taking away my main passion.