I was losing my willpower on day five of my protein shake prep. Then I received an email from my surgeon's office reminding me of the importance of following the protocol. That bolstered me up!
Definitely not a pleasant experience but I'm amazed how well I feel on such a reduced calorie diet.
I've been mixing my protein shakes will lots of ice and some Truvia (to compensate for the dilution caused by the ice) This doubles or triples the size and makes me feel like I'm "eating" more.
I did a week of protein shakes post-op...it IS rough but doable. My pre-op diet was 2 weeks prior and no solids...also rough. You've got this!! It's short term and puts you a day closer to your goal every day. Your surgeon's office sounds awesome that they are following up with you along the way!