I apologize for my pessimism, grad school has gotten the better of me today
I think it comes down to the idea that I will be adequate for something eventually. I may not feel up to par in my life right now, but this is a stepping stone for what is coming next. And what is next will be better (I have to believe). Also, I know I am good at a lot of things, even though they may not be entirely work related.
You learn as long as you live. For me, I’d assess the situation (as objectively as is possible) and ask myself: should I be/could I be/do I want to be better at this? If the answer to any of those is ‘yes’, then I better get to work on it – if not, I should stop worrying about it as it’s not that important.
Ah, whenever I feel anxious about having done something that wasn’t good enough, but really my rational self knows was really no big deal, I say to myself “It’s okay. Just let it go. It’s okay”. It doesn’t work that well. I still think about a lot of silly things over and over again.