@funchy - When it comes to dietary changes, I do better with
gradual change. It took me 4 years to stop eating meat, but I've stuck with it for over 10 years now.
I'm slowly transitioning to veganism with more raw foods thrown in there. I've started with having a green smoothie for breakfast. This is a small change that is very sustainable for me. Sure, it will take longer for me to transition than if I did an all out 30 day trial, but I know from experience that I can manage this pace. Maybe you would benefit from a more moderate approach as well.