I suggest the following

-Avoid ALL caffeine
-Avoid refined sugar
-Avoid nicotine
-Avoid alcohol
-Take a B complex supplement
-Drink lot's of filtered water
-Practice good sleep hygiene
-It may be worth trying Ginkgo Biloba and especially Ginseng. Siberian Ginseng (Eleutherococcus senticosus) is recommended for females and Korean Ginseng (Panax Ginseng) is recommended for males.
-Take a two week break from your exercise.
-Let your body have a little sun in the middle of the day. This helps the body clock
-Eat smaller meal portions

Hope this helps