I am old and I feel like i have nothing to live for?

My wife don't 4 years ago. My adult children don't need me and are busy with their own spouse and children and never call me. I can't remember the last time anyone of them called me. I am retired from work. I feel like I am just passing through life, for no reason. I am feeling depressed. I am very tired. show more My wife don't 4 years ago. My adult children don't need me and are busy with their own spouse and children and never call me. I can't remember the last time anyone of them called me. I am retired from work. I feel like I am just passing through life, for no reason. I am feeling depressed. I am very tired.
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