Are you afraid of dying? What is you're greatest fear?

I'm asking this out of pure curiousity... My greatest fear is a life unlived. I'm afriad I'll waste my life and die unhappy and alone. But dying, which is a common fear I'm not afraid of at all. Idk what religion this may or may not belong to but it's my opinion. I think that death is too big of a concept to conquer. No one chooses their death it just happens. I think their is a reason for when and where someone dies. So basically there is no use taking extra precautions so you're safe. You die when you die, and worrying about dying before the fact is stupid!