Be nice and quiet,do your work,try to get into the group,find some friends there and if bad things happen like recession,everybody will lose job then what exactly you worry about?
I came to this country for better life which means more money,I don't expect anything else as long as I still get paid.
Gonna treat yourself better,life is too short,some people just eventually show up in your life then they disappear,let it go,you got nothing to lose,life moves on