You are either in the game or on the sideline. Even when you are on the sideline the game is still being played without you. Whether you like it or not the game is always being played and you are a player in the game.
No matter what the game is like baseball, football, your health, your wealth, your career or relationships put 100% of yourself into it. Understand what winning looks like for you and understand the rules of the game.
Do everything you can to win! Put everything you have into winning! Win no matter what!