Are you able to just kind of socialize and get involved in stuff without as many second thoughts? Or make and share stuff with less of an imposter syndrome or whatever you might call it when you’re uncomfortable being associated with your work?
Or is it like so many things, where it kind of depends on how things are going that day?
I might be misinterpreting your post but it sounds like you’re talking a little bit more about confidence. The key to having confidence and fighting away imposter syndrome is to find and focus on the positives, how you got to the spot you’re in and all of the times you’ve had to succeed. Forget about the failures and spend time every day reflecting on your accomplishments.
It’s that simple. You don’t even need to believe the stuff you tell yourself, but if you keep repeating it to yourself, you will start the believe it. Confidence requires active effort to build, independent of how good at something someone is. I struggled with my confidence and occasionally still do but had a friend recommend a good book that legitimately changed how I view myself. I can’t remember the name of it off the top of my head but if you want I will look it up and edit my comment.