D AT 11 AND NOW AT 13 MAKING BAD CHOICES HELP?

i was d at age 11 when walking home from school the man had a mask on so i couldn't see him. he took me into the trees and kept hitting me to be quite . i kept yelling for help until i went out and when woke up he was gone and i could hear the police looking for me. when they found me i had been beated and d. i was in the hospital for 6 mouths and 17 days. i am 13 now and they still havent found him i get so sarced that i cry, yell, and have nigthmares at night. my parent have gave me help but it doesnt help. i am almost felling in school and starting to turn to drugs for help. at point i thougth having with my bf wound have help but it made it worst . i get so angy with myself i start to wish my wound have killed me . what do i do now plz help i will try anything at this point PLZ