I agree with MickS get over yourself, if you think 53 is old....
Age is a number only and one that is in your head, if you think old you will feel and act old.
There are people on this site that could give 10, 20 and even 30 years who are full of life and feel that living every day is a joy and a opportunity to live.
Take a read of the message in the Hub below
Plus instead of making a negative list of things... I'm Bald, I'm Deaf, I'm Depressed.....None of which is actually life threatning.
Try making a positive list of everything that is good, you could start with I'm alive, I can play a musical instrument...(Many of us can't).
Go out and do something nice for someone less fortunate than yourself that'll make you feel better about yourself.
Then come back and tell us about it.