You're not alone, I go thru the exact same thing. I have no family, my parents are both dead and their parents went long before them. I had to junk my car a couple years ago, so my isolation reached levels I never thought possible either. The loneliness makes my heart ache at times and holidays are the worst sometimes!
When I read your prayer it touched me so I had to comment.
One thing that helps me a little is knowing that seasons pass, good and bad...you must've seen it yourself when you commented on how much a year can change things. Hang in there. God knows what He's doing. Much love...