good night sleep, exercise(I like to do push-ups), drink the recommended amount of water a day(8-10) cups, eat healthier and cut down on drinking pop, reduce the amount you smoke.

Really though the burnt-out feeling comes with smoking, obviously, so the best way is to just bring your tolorance down by reducing the amount you smoke. Possibly even timing out your smoke sessions so where you smoke a hour or two before you usually get to sleep. This way you will fall asleep already in the burnt out mode and conserve some as well!