Hi LFC. We have quite a few similarities. I am 45 years old single and childless and my Father passed away 2 1/2 years ago. Looking back to my twenties I would have never thought I would be were I am at today as I always imagined being married forever and having kids.
However, I hope this helps. I have been doing a lot of soul searching and I have started to look at my situation as an opportunity people who are married with children may not have. I'm not saying that being single and childless is better, but it does have some advantages not just dis-advantages.