My date is set my liquid starts soon!

I am very excited that I have my date for my sleeve surgery yeah! I have to admit that on the 9th when I start the all liquid diet I am a bit nervous. I mean the way I read all the instruction and the designer whey the dr has requested I have about 5 of the protein shakes and water in between. I figure sipping slowly will fill me up but I am still nervous I will mess up the amount of liquid I drink. I wonder does everyone get this nervous? You still put protein in your soups which makes it seem like a meal which is nice but I really don't want to mess it up. Any advice from others would be welcome thank you