I believe that you get good by getting better. And I think it's easier to tell that you've gotten better than it is to tell that you've gotten good. Look back

I believe that you get good by getting better. And I think it's easier to tell that you've gotten better than it is to tell that you've gotten good. Look back 6 months, a year, 2 years. How have you grown? What can you do now that you couldn't do then? Are there things that you'd do differently? Things you wouldn't do at all? That might give you a sense of where you are now. Repeat the process of getting better many times. Then one day you'll take some call, draw some diagram, write some code and you'll know. For a brief shining moment you will know without a doubt that it is good and you are too. Then the moment will pass and you'll spend a couple of years trying to find the next one.