This is for anyone who has ever had Gastric Byp surgery ?

I started my liver reduction diet 2 weeks ago and i have tried to keep to it but i have mae a few slip ups ive started to become increasingly worried that my liver wont be small enough to have the surgery will they still operate on me if my liver isnt small enough !!!! i have 5 days to go an really need questions awnsering pleasee help !!!!