The only thing that worries me is the idea of facing death thinking "Hey, I'm not finished yet!"
There are so many exciting things to do, see, experience, that I'll be very upset in the final few moments of my life if I haven't done a sufficient number of them...
Otherwise, death holds no real fear.
I'm just not ready yet!
Going back into childhood for an analogy, it'd be like mum telling me I had to come home while just getting started in the real fun round my mate's house (like, we'd just built the den and were poised to leap off the dresser into the piled-up sofa cushions)...
Of course, as soon as you are dead - all upset is gone - squished - nada - as if you never existed in the first place. There's no you to care. I think that's beyond our comprehension... But living on is the 'you' inside all the heads of your friends and family, and /they/ get to feel the anguish on your behalf...