I feel like i'll never be ready

I'm 16 and i feel like the 'readiness' that everyone talks about will never come. My friends are having sex and giving advice (and its not like i wanna do it just because they are) and the feelings they've had have never appeared to me. I'm almost never 'in the mood' and every time a guy i find remotely interesting wants to go further i just stop functioning. I was raped when i was younger and its affected me a lot to this day and i'm afraid that since it's had such a big impact on other aspects of my life that it'll affect this too. I don't want past trauma to run how i live my life now. What do i do?