Start eating the right or better foods on a daily basis, better being Nutrient Dense Foods.
Watch what you drink, consume lots of water, herbal teas or green teas, every day.
Avoid sugar in your diet, swap products containing white flour, for brown or granary/wholegrain, reduce salt intake, and certainly avoid highly processed foods and beverages.
A healthy, balanced diet keeps your body and your mind from stressing out and can additionally help you fight off signs of burnout.