Cassidy Williams is an engineer at Codepen. In the last five years, Cassidy has worked for five companies. She had left each on her terms as she learned through experience what she wanted and didn't want. Figuring out what you like and what you don't like is critical for ending up somewhere that you're happy with, Cassidy calls this establishing your personal brand. The term "personal brand" has negative connotations to it, it seems unauthentic, but really what it means is figuring out who you are and making that public, it's as authentic as you make it.
Kent challenges you to take five minutes and write down what you like and what you don't like. Afterward, reflect on that list and ask yourself if where you're at now lines up, if it doesn't dig deeper into figuring out how to make the necessary changes for your life to align more with your likes and dislikes.