If you are trying to change any habit-set your self up for success by taking less on during that time.  We have been focusing on lateness and procrastination lately but this can help with any behavior change from smoking to getting exercise!  Reducing stress at that time increases your will power to succeed.  Stress often makes you resort to those old ways of dealing with things instead of trying new ways. 

So clear the decks and plan successful change by giving yourself a little break to do so.