Haleyscomet - make sure your coke zero is really cold - it tastes better. I converted about a year ago, and I was drinking heaps of coke before. Well done for changing your eating style before uni. My dietician always said go with your cravings, it's better to have a little piece of what you want then sitting there eating a huge piece cause the craving just got to much. So just buy a little bar of chocolate, even if you eat one or two squares and give the rest away.
Thanks for the advice, I have bought some coke zero today and its in the fridge chillin as we speak . I ended up not having chocolate last night. I was craving it so bad but I was no nice and comfy in my warm bed that I could not justify waking up the whole house, going out to the garage to grab some choc I KNEW I had in the console LOL. It is still there too haha