Hi!
First of all - you're doing great - its a difficult time at the moment and I totally understand your point of view and worries
Maybe download bumble? Im sure they have the new friends version for the app instead of dating
Maybe try to do some FaceTimes / housepartiea (the app) with any friends you've made that you feel quite comfortable with?
Also, I'm sure there are other students in similar situations themsleves. Maybe post in any local Facebook uni groups to see about this? Don't feel bad about it im sure tons of people will be worried
Stay safe!