Liquid diet before the surgery

I've been on 4 protein drinks/day with 6 allowable servings of applesauce, oatmeal, yogurt, SF pudding etc==for the past two weeks.  By my calculation, 800-1000 calories.  The first week was really really rough - I cheated on mother's day.  But I think finally I'm starting to feel less irritable (that could have been from the caffeine cleanse as well though I never got a headache) and less weak and lethargic.  I start clear liquids the day before surgery; then NPO after midnight.  Luckily I have a friend coming over to stay with me so I'm assured that I won't go stark raving mad!!!