Tina, I totally know how you feel. I am 22 and married with no kids. My two closest friends are much older than I am, one is 60 and the other is 41. I love them dearly but sometimes it's hard because of the age issue. I don't like being away from my furbabies too much, but I want to get out sometimes. Justin (my husband) has a few close friends that he goes out with a couple times a month, but it's a boys night out. Two of his friends aren't married and neither even have a girlfriend. The other two are married but live a couple hours away and I've never met their wives, in fact I've only met them once.
I also suffer from social anxiety. I have a very hard time talking to new people. I can't go out to eat with new people. I'm also a little over weight and very self conscience about it.