Have healthy snack foods on hand. Nutritious, easily prepared foods are helpful. Drink lots of fluids. Your body is healing, and if you are breast-feeding extra fluids are essential. Drink lots of water.
Unsweetened juices are also terrific.
Avoid caffeine, and empty calorie sodas. Avoid or conscientiously limit alcohol use. Get help with the housework, meals and other children. Prioritize to conserve energy. Not all housework is equally important.