I suggest a complete physical exam first, if you haven't had one in a year. Some issues are basic to an MD. Along the physical care lines, review your diet. Good nutrition and limited junk food is important for good mental health too. Have you tried herbal remedies for sleep assistance, they rarely have lingering side effects making it difficult to rise in the morning. Exercise is important. Even when totally fatigued (you think) a brisk walk can do wonders... I would encourage this for your break during work, to give you the spurt to finish work strongly.