You may want to lower the light earlier at night, reduce distraction such as tv, computers/games, or late exercises etc.
..Avoid caffinated drinks/products after 3pm etc...Also, get up earlier in am and don't nap. Meditation
before bed. This may take several days to work for you, but should help. Melatonin
(otc) may also help in this situation. If all fail, consult your doc.
Best of luck.