friends

i can’t believe it but up until now ive never had a problem with loneliness because i have always had my best friend to rely on. this year my best friend went to boarding school and i have found myself with basically no friends. there’s one girl who is my “friend” but she shit talks me behind my back and doesn’t care about me at all. i spend most of my days at school alone in the bathroom crying. some really nice people have reached out to me by texting me asking if im ok but i struggle with opening up to people. advice?