Before you worry about how to win the game, figure out whether the game is worth winning.
There are many recipes for success. There is no single way to win. But nearly all recipes include two ingredients: curiosity and drive.
The difference between how I feel before my first set in the gym and how I feel after my first set is enormous.
You don't even need a full workout (or work session, etc.) to feel good again. You are 5 minutes away from putting your day on a completely different trajectory.