Can someone interpret this? Its very weird and kinda scary

Yesterday I dreamt this. There was this room that everyone was really excited to go into (I cant remeber where it was I think an amusement park), so I went to see what it was. When I got in there the room was purple-y and nice looking, and nearly everyone in my year at my old school was in there (as I am starting college soon). There were these boys in there holding these little spray bottles (these boys were the kind of boys at my school that just played football and took the mick out of people I didnt really mind them) and I asked them what was going on, and they said 'we are going to play Durch den monsun' (Durch den monsun is a song a like) so I was like yay your playing durch den monsun. The room was rectangular shape and it wasnt cramped at all, so when they shut the door, the boys were spraying everyone with these spray bottles, everyone started running, and once you got hit by the spray you fell on the floor, I got hit, the room was filled with people screaming and yelling at this moment. My eyes were stinging so badly and I tried to get up but I couldn't walk at all, I tried to walk out of the room, but I eventually stumbled back onto the floor, and asked a girl (i dont really know her very well in real life, i'm just on good terms with her i guess) what was going on, i cant remeber what she said, all i know is that she was in total agony, and her eyes were red from the stinging of the spray. And can I just emphasise this, my eyes and my legs hurt so much, more then words can describe.
And. I cant remeber what happened after that :/

Basicly I want to know what this dream is trying to tell me. It kind of reminded me like what the gas chambers would of been like for the Jews because the people spraying the gas always told them that it was going to be something nice before they did it.
And for the extra details I've just turned 16 and I'm starting college in a week. I have social anxiety so I am so nervous about it, and constantly worrying about it, as I'm not going to know anyone there. Is this linked to it?

I would thank anyone massivley who tries to interpret this dream :)