I was sexually assaulted.

I go to a Christian school and I dress quite conservative so I never thought anything like this would happen. It happened back in fall but I see that person every time I go to church and it gives me a lot of anxiety and I've unintentionally pushed people away because I dont know how to deal with this. I'm only 14 and not even in high school yet. I just want to be happy again and love my body again.