Are you avoiding talking about the incident? Are you having flashback of the car crash? Any anxiety or dreams? Can you tell me what you mean by fear of churches? Are you afraid to go inside a church? Not feeling your emotions is a normal response to trauma. It sounds to me like you are suffering from PTSD. A good therapist who has experience with PTSD can help you feel your emotions again. I also suggest the book waking the tiger by Peter Levin.