Hi guys, I'm new to this so please be gentle . I've been doing the Cambridge diet on and off for a few days but have yet to stick to it continuously. I find it really difficult to stick to while am at work as get really tired and can't concentrate, although I know this will pass after a few days. Do you think I should wait a few weeks until I can book a holiday for a week to start or shall I do it this weekend? Really want to know how long will take before start to feel ok again as think will lose friends if am in public for any of the difficult first few days!!