How was Dan Harris’s self-concept in general?

Watch this video and link is given and please answer these following question
1.)How was Dan Harris’s self-concept in general? Please choose one of the four components of self-concept (social self, self-enhancement, self-evaluation and self-verification) to apply to him, considering how he described himself ten years before the episode presented in the video.
2.)Dan Harris experienced an episode of extreme distress in his workplace. Explain it relating to the pandemic effects on workers, extensively seen nowadays.
3.)Lastly, highlight what caught your attention more and the lessons you can take for your professional life.