There is SO MUCH DRAMA and I don’t know what to do

So basically I went to France on a residential school trip (btw I’m 14) and we were in dorms of 4. So whilst I was packing they were being really loud and honestly really annoying and I didn’t even say anything at all I just sat silently but I was already annoyed so I walked out into my other friends room because I didn’t want to get annoyed at anyone and just sat in there for a bit. We were called down to do night activities and I realised my dorm people had left the room and I left my shoes in there (there were two keycards and they had both which didn’t make sense because at that point I wasn’t hanging out with them so I kind of needed one for myself) so I found them and asked to have a key card just to get my shoes so I went and got my shoes then walked back into my other friends dorm to give her back her shoes that I borrowed. next the two people from my dorm BANGED on the door and started shouting at me saying I’ve lost the key card before but SHE LOST IT TWICE and locked us out twice so I said can I just use it for The one day left and she kept shouting at me so I threw it at her which was probably the wrong move but I was so upset as they were already talking about me behind my back. Later thy came up to me and said “WHAT THE F**K IS WRONG WITH YOU” and started being horrible. And kicked me out of my room and made me go to someone elses room but the teachers told us off and said we couldn’t so I went back and they started being horrible to me. Once we got back home she texted me saying HORRIFIC things about me like I was a B*TCH and no one liked me that I was ugly thick and just all round mean things. We got over it in the next week but then my other ‘friend’ told BOTH MY CRUSHES THAT I WAS IN LOVE WITH THEM and btw she was my best friend and told them being the people who I wanted to be told the absolute least that I liked them then went round telling random people then also said horrible things to me on message like “it doesn’t matter because I’ll never need a fake friend again” and now I don’t know what to do because there’s so much going on and it’s really stressing me out also people are annoyed at me for no reason and I’m always tired and annoyed or sad