My inner voice is an asshat. And it will not shut up.
There was a commercial a couple years ago. In it, as a lady is preparing a dinner party, her inner voice keeps hinting that she is in over her head, she should have a back-up plan (a caterer), etc.
That’s my inner voice. I go to meetings and it tells me they are much smarter and better qualified than I. In fact, it says, they mock you behind your back. It’s really not helpful.