I think during the holidays people actually feel more isolated at times. And quite frankly social stuff do become equations cause you have limited time - so you need to decide what you need to add or subtract.
I know people who are 50 and just figuring out what they want to do.
The best that you can do is try to do what you enjoy as often as possible.
No
I became a hermit after a long relationship ended and actually grew kind of accustomed to it.
I wanted to be a teacher but never got my degree. Now I push bottles but haven't given up on the idea that I won't do that forever.