Loneliness

These days I am finding that I am really lonely.  I can be in a room surrounded by people and still feel alone.  I have friends and I try to keep in touch with them.  However it seems they are always busy with their other friends or their families.  I do not hold this against them.  I get wrapped up in the things going on in my life as well and am not always the best friend I could be.  I guess what I am getting at is that at this point in my life I thought I would be a lot happier than I am.  I have no job, I am a single parent and I live with my parents. (who are not always easy to get along with nor am I) I keep trying to remember that God has a plan for my life but at times like these when I feel all alone it is so hard to remember that.  I am supposed to be taking my son to see his dad who he has not seen in about 4 years and all of a sudden I have no desire to go.  I know Ethan needs to have a relationship with his dad but I really do not want to put any effort into it. Am I self consciously bringing this loneliness on myself?