Sorry to hear RG.
Being single means knowing that you still like yourself. If you don't have that, then lots of things look harder, when they really aren't. Except benefits of cost-sharing and intimate matters.
I have concluded (imperfectly) so far, the older we get, we do develop strong preferences of how to live and certain views of the world. Does that sound rigid? I don't think so 'cause what is worse is knowingly entering into an intimate relationship and a person may strongly suppress some very positive natural things in self --just for the sake of another person. And over a long time, for some couples, 1 of 2 people may suffer. They may not know it then later it manifests in headaches, loss of sleep, mysterious weight problems, etc.
I stress, it would be situations, related to a person's identity (who they are inherently and how they feel about that) or person has very strong natural and positive skills, which were never further developed, via more education, etc. I know latter, is related to person's initiative, but in some situations, a spouse /children doesn't make it any easier to make big changes.