I can't say that I am particularly worried about death. I used to be religious, and almost kind of looked forward to it in a way at the time because I was lazy and demotivated as hell, couldn't really understand why I was such a failure socially and personally, and the thought of an infinitely superior afterlife(provided I was a good little boy) only fueled my detachment from this immediate life.
Once I gave up my religion though(having 99% agnostic/atheist friends probably didn't help
), I found that the pressure to perform to my religion's arbitrary moral standards went away which made me feel better and encouraged me to take more responsibility for my life, and my rationalization of death also helped with not leaving me feeling an exaggerated fear of death. As for that rationalization, I'm pretty much of the opinion that nothing happens when you die, your consciousness simply fades to nothing, no regret, no hostility, or watching over people from above or anything like that, your just dead. Not resting, dead, no feelings, no fear of death or nothingness, just a lack of existence, plain and simple. This has always helped me feel better about the potential of dying in a less than favorable situation like being spited right before death, because it helps to trivialize pre-death feelings for me. While I can't say that I will think exactly the same way as I do right now once I start to make more friends and possibly family since my perspective will shift to care more about them than myself, what I think right now works for me quite well.
Once I gave up my religion though(having 99% agnostic/atheist friends probably didn't help