Every few days, my tech-savvy father sends me a simple reminder via text—an image, a saying, a blessing or a piece of wisdom to remind me about what’s important in life. The other day, he sent me this powerful quote from Bryant McGill: “You have to accept that you’ll never be good enough for some people. Whether that is going to be your problem or theirs is up to you.”

This message was especially well timed, as I had recently been doubted and disrespected. I was told that my dreams were too big and that I was naive to think I could be part of pulling off the proposed vision with my level of (in)experience. As much as I proactively fine-tune how I present myself, being doubted because of my age was not a first-time occurrence. I’m convinced...