I can relate. I have a difficult time recognizing if I am competent or incompetent or somewhere in between. I know I have a distorted view of my work performance. I judge myself harshly, so at work I feel I am not as competent as my coworkers and that gets reinforced whenever I struggle with a task or make a mistake. The distorted part of it is that when I get feedback about my work, I get praise most of the time. The same with interviews. I go on interviews for jobs and overthink about every stupid thing I thought I said, but I still receive job offers. So, it is that harsh critic in our mind that distorts our view of ourselves. We are more competent than we think.

What has helped me is to try not to consider or even think about my performance at work or during an interview. Don't let it enter your mind. I know I have a distorted view of myself, so I trust that my boss or interviewer will figure it out for themselves if I am a good worker or good candidate. I accept how it will turn out without embarrassment because I can only do what I can do. I know it can be difficult to ignore the critical voice.