i'm scared

Ok i'm so scared really well if you know me you know that i'm on 6th grade yes 12 ,11 or 13 years old kids but they are all wierd .So a new classmate join inn my class and he is wierd he is anymore virgin ! he smokes and awful stuff when i heard that awful thing i did't know what to do i were so scared so what i can do ? what i can do if he fucks me ?!!!!!!!!!!!!!!!!!!!!!!!!!!