I have sugar cravings, when it hits I can be like a mad man, rummaging through all of the cupboards for something sweet.
Most of the time I have control over it. I've never gone cold turkey, I just don't think it;s sustainable. I took the small steps approach. Small swaps and small reductions. from 1 teaspoon on sugar in tea to half a sugar. From a Snickers bar to a Nakd Bar, from milk chocolate to 70% Dark chocolate.
With small lifestyle changes over time you'll have a much better chance of breaking the addiction permanently.