Dream About Graduation And Impersonation

I had a dream where I was graduating from my polish secondary school. I decided to show up in my clothes I like but they seemed dirty. For context I used to be the 2nd shyest person in the class, the 1st shyest was a girl that sat next to me. I never liked going to that school due to the lack of friends. But anyways, in this dream, during graduation, I was standing in line, when suddenly that shy girl complimented my outfit, she said it looked nice. I thanked her but decided to look through my closet that was in the graduation room for some reason and I didn't find anything to wear, what a bummer. I somehow left the graduation and decided that I'll go to a shopping centre. When I came home I realised I missed my graduation. I was trying to figure out what time it was because it kept changing when I was looking at my watch. My room was very dark, almost like the darkness was swallowing me. The watch should've been a sign that I was in a dream, I tried to lucid dream and it didn't work. Anyways, then the scene changes and now I'm in a specialized mobile unit car. Me and the others are playing a game where one of us is the imposter and we need to find the imposter before he kills us. So anyways, first I'm not the imposter and I can see the 3rd person view of the mobile unit, my goal is to avoid all the tentacles that the imposter is spawning on the road. So I do it great. When I'm done they told me that everything I said was recorded and I was embarrassed because I didn't know I was being recorded and I don't know what they know I said. Then we have a meeting and I keep thinking they know it's me but they didn't. Suddenly they all decided to go to different rooms. I ask a guy that stayed with me if the imposter can kill crewmates physically, he said that he can and he started acting weird. So I decided to act scared and run away. I ran and ran until I jumped on a chair and decided to shake up a cola bottle and use it as a weapon, that if he got too close I'd spraybit on him. I didn't spray it on him, I just ran into a room to find the other crewmates. I see the 4 crewmates having sexs on a bed and I'm shocked. When I enter, they just kept going and trying to explain why they're doing it but then the dream ended