Hello Mishap, I share your feelings about life being more about the quality than the quantity. Discounting tragedies, especially of the young I do feel that sometimes the press can get just a bit carried away about death and creating a false image of it. As if it is something that must be battled with and perhaps even defeated.
Last month there was a lot of talk about Nelson Mandella being very poorly and going into hospital, almost as if we should be surprised that he was unwell. Although I am not vastly religious I do feel we have a natural 'span', it might be a bit more than 3 score and 20 nowadays but non of us can go on forever (I would not want to). We should not be afraid of loved ones reaching a natural end, desperately sad and disstressed certainly, but it is going to happen. Far worse, is to see them as no longer the loved parent and grandparent, just a shadow of what they were, merely existing.
You are going through some tough times Mishap, and its quite natural to feel the way you do, its what makes us decent people.