I'm in a whole and need advice?

Ok so right now I go to a private highschool and I'm a freshman. At my old school a year ago in September which is a private school we have a karnival. Ok so the karnival 2 years ago I was accused of calling this guys sister a slut which I didn't but when I was alone he and his friend tried to jump me but I ran away bec I didn't no wha to do bec I had never fought before. So the next day me and my frend went to karnial and e didn't do anything because the 2 guy ho tried jump me thought they were going to get jumped. Ok so now it's 2 years later and I go to a cathlic private school but now I can't go there anymore and m forced to go to there school. I know there just egar to get ke alone and ump ke even after it's Ben 2 years. I've never been to a private schoool bfore. I do not know anyone at the school and I'm probable going to get robbed and beat up every day. I will have no allies wtu me.