I don't know how much this will help you, Nee, but I did find that when I was on my pre-op diet for my surgery, I had to cut out all sugars, and the two weeks on that diet, I believe, got me to overcome my sugar addiction.

I had the worst migaine on day 2 and 3 of the diet, I was cranky and tired and unhappy, but then from the 4th day onward all those things gradually went away. By the end of those two weeks, I'd stopped craving sugary foods altogether (and still don't crave them now).

In my mind, what I did was give up sugar cold turkey - even though that wasn't the intention of my pre-op diet, that was one of the 'side effects'. It was bloody hard those first few days and I do believe that the migraines and mood swings were a symptom of my withdrawal from sugar. I now don't drink coke (used to have at least a can a day) I don't eat sweets, I don't eat chocolate much (maybe a small piece or two if I feel like it or it's an occasion) and I don't eat cookies. I don't so much consciously avoid these things as it's just that I don't crave them anymore. If I do have something sugary now, I feel ill and get a headache.

So like any habit/addiction, you need to break the cycle. And sometimes going cold turkey can work.