I agree with the others. Darker, healthier chocolate in reasonable portions is the ultimate answer.

But I think that your challenge is to get from here to there. And I don't disagree that cold turkey is the wrong way to do it. Perhaps after you've been chocolate free for a bit of time, you'll be able to sample a very different type of chocolate - 70% cocoa, organic or even beet sugar, etc; without having the same need to overindulge.

One other thought: I'm no professional, but your descriptions sound more like an eating disorder than a mere addiction to chocolate, and I wonder if you would consider seaking professional help?

Any way that you decide to do this, we're here to support you!

Hugs and butterflies,
~T~