You need to eat healthy foods that give you more energy naturally. Foods that are great choices are honey, green tea, fruits, and nuts. Make these foods a staple in your diet.
You need to establish a set routine in which you go to bed every night. Aim to get at least 7-8 hours every night. Don't stay up late every night. Get to bed!!!
Exercise as much as you can. Try to get some brisk cardiovascular activity in everyday. Try to do about 30 minutes of exercise. Regular exercise is healthy for you and will add years and vitality to your life. It will also boost your energy and alertness.
Keep your stress levels to a minimum. A lot of stress in your life is unhealthy and will drain your energy levels. Excess stress will also release cortisol in your body which will cause the body to store fat around the mid section.