1-Eat between 3 and 5 meals a day. Stick to portions and you will be hungry when your body is ready for the next meal. Breakfast, Lunch, and Dinner are meals you cannot go without, otherwise your body does not receive the nutrition it's supposed to get
2-Sleep about 7-8 hours every night. Dont sleep too much or too little. #Don't overdo Carbs! Makes sure you eat a limited amount of carbohydrates each day. Don't go without them, just don't eat a lot of them.
3-Exercise. You can't live without it. Make sure you spend around 30 minutes to an hour doing nothing but some running, weight lifting, push ups, and maybe some sort of aerobic exercise is good.
4-Keep clean! Good hygiene is key! Wash your hands after you've gone to do your business. Good oral hygiene is also very valuable. Brush your teeth around 2-3 times a day.