Ok, but I would also go easy on the caffeine, Its addictive and has alot of bad effects from long term over use, plus it does'nt realy help because after its effects wear off you'll just be even more tired.

I would also mentain a healthy diet etc just to try and get every bit of energy you can, and like I said power nap whenever you can during the day, this should help you to wake up when you realy need to.

Over time your body will adjust if you stick to a set out sleep and nap schedual and dont change it.

good luck