Screaming or howling

(This may seem exaggerated, but most of this is actually true from what I recall) I was on my computer, playing a videogame, presumably Overwatch by the characters. I was regularly playing as <PERSON> until I faded into a classroom. Confused, I looked around to see it had a 1800 type setting, with girls in bonnets and boys with fancy hair. My teacher wore moccasins and a <PERSON> wig. He was teaching us math when he looked at me and said, "<PERSON>, please tell me what I just said, because it seems you were not listening." I literally confusingly replied "52." He disagreed and nodded his head to the side in disappointment as he pulled out a rusty radio and pushed a button, when the radio said "53 is the correct answer to this question." Unfortunately, my curiosity on why he had such technology in a classic era lead to me appearing in an asylum-like setting. From my memories, I was a janitor sweeping blood off of the marble floor. I started hearing odd noises, giggles and whines, as I looked to my side to see a hallway. I slowly walked up to it when a doll popped out and looked me dead in the eyes. It screamed and jiggled its body rapidly and I just stood there petrified. I could not take anymore of it, as I commited suicide in the dream by jumping off of the balcony of the mental asylum. One last memory I have is standing in the middle of a war; an intergalactic one. UFOs, Star Destroyers, and spaceships flew around shooting at each other. I had a gun in my hand, and at this point, I completely realized that this was all a dream. However, I was too lazy to just continue the dream, since I was still kind of traumitized from the segment before. So I did what I could and shot a couple of people, until I put the rifle to my head and shot myself. My dream ended abruptly and I woke up confused, but just went back to sleep.