I was homeless as a teen. The survival skills I learned now help me coach Aryna Sabalenka.

Jason Stacy coaches Aryna Sabalenka, who is playing in the US Open. Courtesy of Jason Stacy Jason Stacy is a performance coach who helps Sabalenka train physically and mentally. He's also a dad of four, and he aims to teach his kids the same things he coaches. He draws on skills like reading people and staying true to himself. This as-told-to essay is based on a conversation with Jason Stacy , author of " The Pressure Code: How Elite Performers Align their Energy, Emotions, and Environment. " It has been edited for length and clarity. My dad died in my arms when I was 11. He had been in a motorcycle accident and was home, recovering. I heard my mom yell for me, and I tried to keep my dad breathing, but he stopped. We later learned it was a blood clot that killed him.