I've made a huge mistake.

But sometimes I feel like the things I know are not the right things. Have I spent too much time learning how to do things that are not good things to know how to do? I feel like people at my position in life are maybe expected to know more things than I know. But what do I do? Do I keep doing the things I know how to do and keep teaching myself more about these things? Or do I go to school or something to get people to teach me about completely different things? I don’t know. What I do know is that thinking about these things that I know and do not know makes me really grumpy. So there.