I was on 100% liquids. 3-5 shakes per day, and water or decaf tea.
Honestly, just survive it. You're going to be hungry, and it's miserable. IMO, the pre-op diet was absolutely the worst part of the whole process. You can do it, just keep on keeping on!
"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly..."