Continued practice is essential for precision and successful shots. It is a good idea to shoot a few hoops every single day. Try doing this in your spare time after school, at lunchtime, or anytime that you get a chance. I've heard that certain foods can give you energy. Although athletes should always maintain a healthy diet low in fat and high in carbohydrates, this is especially important the few days prior to a game.
Most runners try to eat loads of carbohydrates a day or so prior to the competition.
A good habit to get into during the season is making pasta the main dish on those days prior to the game. Remember to eat a healthy breakfast that is low in fat and high in carbohydrates. Try to avoid dairy products. Pancakes, French toast, orange juice, and bananas are all good choices. Just like with anything else, a good dose of common sense is the best medicine for what ails you.