It happens. It's done now and the good news is that you have none left to tempt you. The thing that's helped me is when the craving is really intense, I tell myself I can have one but I have to wait two hours. A couple more hours isn't going to kill me. And when two hours is up, the craving has normally dissipated.
I think I'm actually eating less chocolate than before. Now that I don't go into the shop for a pack of ciggies I don't also buy the accompanying chocolate or sweets. I feel quite sorry for that shopkeeper, he's probably lost his best customer..