Things I do not know how to do.
I am, as i like to say, very good at what I do. Bike delivery. Navigation. Some kinds of cooking. Massage, and associated skills. Other stuff.
But lately, for Reasons, I am conscious of the things I do not know how to do. And I am realizing, that rather than take a chance on doing them badly, or trying and failing and learning, and tryng again, I am not doing them. And I know that leads to a real risk on not being given, not having, the opportunity to do them later. One shot, for a given value, is maybe all I get. On the other hand, there is the whole "Do it right or do not do it at all" school of thought.
The scary sad part is, I do not actually know which one it is I am facing, at any given moment.