Hostel anxiety

First time in my life I'm so far from my home that even if I'm feeling so down, i can't even talk to them ..and in this situation when I'm literally adjusting the new environment there's my mad roommate who i had argument with the very first day i came in this room and now the situation is off but she's ignoring me , taunting me sometimes, gossiping and spreading lies about me but i just can't catch her doing that ...and everyone i going somewhere with their roommates and mine one well you know already...my anxiety and my brain is freezing rn ...i don't know what to do...but i know if i don't do anything soon this will not end happily..