I am alone in this world as well. No one cares about me, truly cares either. I receive about 1 call for me a week. No one ever comes to visit me.
There is a concept that a successful life is not about the possesions one has it is about the family and friends one has. I have neither and that leaves me in a state of shame
Walking alone in this world is very, very painful. It helps to write on message boards such as this, a little. I get relief watching shows or movies. I get relief taking walks. I get relief when in stores to buy food or something. I have little, very little money, so I am not able to buy much of anything.
Although I get relief from those things, in the end I am again with the feeling of being all alone; I am ashamed of myself. My daughter threw me away when I got laid off in 09 because she was/is ashamed of me.
I wish so much I had a magic wand to relieve you from your pain. I so know that physical pain that emotional pain, loneliness can cause.
All we can do, as I see it, is surrender to it; to accept it. That did help reduce my physical pain, oddly enough; I am unsure why that worked. However, the looniness and preference to have my life over is still with me.
Finding things to focus on other then the pain may help you somewhat.
I am so, so sorry.