I dream about a dead celebrity killing me

Hello guys, can someone help me what does my dream means? It was just earlier ago when i woke up and it’s scaring me. From what I remember the killing takes at my old grandmas house and the pov was me being the celebrity and then it feels like that celebrity has a Dissociative identity disorder and his favorite thing was dark corners of my grandmas house. The dark corners even had a name on it, I don’t exactly remember but it’s like weird name. Fast forward, it was my pov now, his favorite dark spot was the bathroom of my grandma, that bathroom was kinda creepy when I was young, I used to dream a lot about that bathroom and had a creepy things whenever I go there before (They left at that house 2 years ago) So, I was trying to plan about something to defend myself that time, I stayed at that bathroom and heard him ask if there’s something ??? I don’t actually know and exactly remember but I said there by opening the bathroom door that “Yes.” It was completely confusing and I was in shock because he’s like suddenly small??? like a baby and mind you that.. He was holding a long ass knife like probably a 9-10 inches long, and I was also holding a normal kitchen knife as well tries to defens myself and I ran and idk how I got that long knife that he was holding and I tried to kill him and push him with the tip of knife, I was like oh he’s dead but he wasn’t. He was chasing me outside of the house and I couldn’t remember if I died or not but at the end I was sitting outside of that house and heard him laughing insanely while I was covered in blood, I was too far enough that he couldn’t see me anymore. I woke up drenched in sweat and in shock. What does this mean?

(I’m sorry if there’s a grammar error, but I tried my best to explain because it’s creeping me the f out so much.. Thank you :). )