If sleeping schedule is the only challenge,  you can work on it by means of modifying your lifestyle. Give an hour or half for physical exercise (maybe hitting a gym) that will give your body amazing energy throughout the day.  Change your diet plan with nutritious meal. 10 to 15 mts of meditation before going to bed. Alter your body clock by waking up after 7 hours of sleep. Get up with determination than lethargy.