When my son was in high school, he had a summer coach that every time he was leaving the dugout to pitch a game, he would say "Don't screw it up."
Every now and then I will text him that on game day, just to keep things light.
Yesterday, I happened to talk to him as he was leaving with his roommates to his game. i said good luck and I love you. It made me feel good he said he loved me too without hesitation, in front of his buddies.