I received an email from a woman today who must be around ninety years of age who, from what she tells me, is very happy despite all of her health problems. She's even written a book on Happiness which, apparently, is making some sales. Her advice? Keep a diary or Happy Book, in which every day you make it a habit to write down in it any positive and happy thing which has happened to you that day. For her, this seems to work pretty well.
My own belief is that you need to have a 'philosophy of life' that you can live with. That is, it has to appeal to both mind and spirit. If we think we're only an ego-mind contained within a bag of skin, then we're in for trouble as we grow older. We see life as the proverbial 'glass half empty.' Or, nearer to the end of our lives - and I'm seventy-seven now so can can speak from experience of observing my comtempories - that glass isn't even half full...there might be just a few drops in the bottom.
This is quite frightening to those who think that their life is somewhat similar to a carbon-battery cell; when the life is gone, so are they.
So faith is good. But knowing is even better. So my advice to all is get to know who and what you really are and the fear of death, along with all the bitterness and recrimminations will fall away.