I'm sorry about your being in a car accident and glad no one was hurt. You and the others were very lucky!!! It's understandable that you have fears of death now. Are you seeing a therapist? It sounds like PTSD, and a T can help you overcome it, besides it being helpful to talk with a professional about what happened to you.

When you were hospitalized, did you have a therapist? Did he/she help with your feelings about the accident?