Earlier quoted context omitted.
The issue in these cases is that you have a hard time not focusing on them. These intrusive thoughts come all the time, take up mental energy and time. It would be best to just focus on actually building things, but it's not always as simple. It may alleviate the thoughts if you knew for sure that you are not an impostor from a source you can trust or perhaps it will require therapy. Or maybe you can actually push th…
Having a very hard time not focusing on intrusive thoughts is a symptom of OCD.
So an outsider who says "just deal with it", won't know the ratio and magnitude of negative to positive thoughts, someone else might have.
Everyone has doubts, but frequency and strength may vary.