Congratulations on your upcoming surgery! You are on the way to a happier and healthier you. Remember small bites when you are eating. And, sip throughout the day, so you can get your fluids in. It will seem difficult at times to drink that much, but you really have to drink all day except 30 mins before and after you eat to get it in. You definitely want to stay hydrated. Keep us posted on how you are doing!