You should try to drink 8 glasses of water daily.
Nutrition is extremely important to personal fitness. Because if you eat too little calories your body doesnt have enough calories to build muscle or progress. If you eat too much food with sugar, or fat or too much calories you will gain fat if your in a caloric surplus which means you eat more calories then you burn and also if you dont eat enough protein then you wont build muscle
The amount of time that you are going to exercise Usually when you play a sport you get dehydrated and tired. Each breath you take, you release water and your body needs more water to hydrate. Hydrating ability