I gave this reply to another thread:
I used to be terrified to going to meetups, because I felt like a real developer when I had Google/Stack Overflow/docs etc. But in the nakedness of "standing around and talking", I felt like the fakest developer on the planet.
It helped to try and look back to a past self where I knew even less and realize how much more I knew now compared to then.
And eventually, weirdly, I stopped feeling this way altogether. Now I'm just a plain old real developer...like I always was.
I thought it might help others dealing with impostor syndrome.