New school anxiety.

I'm going into my sophomore year and I just moved to a new state,which means new school. I'm really trying to start over this year. Last year I was in a bad relationship with someone who got me into drugs and cheated on me. I have really bad anxiety even at a school I've been going to, so new schools are very hard for me. I'm just so nervous because I don't know anyone and I really want this to be a good year. I'm just looking for some advice and ways to deal with anxiety. I used to just smoke it away but I'm really trying to quit. Please help!!!