... walking toward a group while on anti-depressant?

I still feel very anxious and nervous when approaching a group of people or entering a location that is crowded. I was bullied by my classmates in the room I spent most classes in, one girl was the "leader", she passed notes to students that belittled me, I never saw the notes but I knew she passed them because of the way others were treating me and I didn't do anything to these people or say anything to them but I thought this girl was a friend but she WASN'T. Remember the t.v. movie and book called 'Odd Girl Out'? That was was my high school life, I liked the movie because I identify with it.