OK guys, I'm looking for advice that goes beyond common sense. I've returned to tennis after a 20-year layoff and I'm playing in my first tournament in 3 weeks. Got a game plan for hitting 6 days out of 7 (3x matches, 3x practice/drill, one off day) till then. Hydration, flexibility work on the plan too. So what am I overlooking, besides maybe packing ice packs and Advil in my bag and bourbon if things go too far south?