dirty pics going around school.

i go to a very small school well there was this boy and i showed him one of my like dirty pics well it lead to me showing a couple more guys and i was talking about sex i guess and a couloir people heard. my teacher told me that someone told her im sending dirty pics on my phone (i am but i don't want to get caught at school or get other people in trouble) like what do i do? im so stressed i don't want to go back to school monday and be chewed out in front the class and have the boys punished or something bc i would feel extremely bad. i feel horrible and i don't know why i keep giving myslef a bad reputation at school. i'm always ruining things for myslef and embarrassing myslef. i just had to say something bc like im so nervous my chest hurts. ugh i am just always doing this and mailing people not like me.