Give up chocolate? Are you mad? I couldn't. The only time I've ever successfully lost weight (4.5st) I had a mars bar every single night. I was calorie counting then too, and just saved enough cals to have my treat every night. Many days it was the only thing that got me thru the day.
I have lost a significant amount of weight one other time, 4st, but I wasn't trying then. I have had gall stones for years, but surgeons always refused to operate coz of my weight. I was hospitalised with them when I was 7 mths pregnant and the surgeons here said they'd do it post-baby. After I had DD they were worse than ever and I couldn't eat even a tiny bit of fat without ending up in a&e. I went from 23st on the day she was born, to 19st in 6 months. Had the gall bladder out in July, and since then have gone back up to almost 21st.
Anyway, back to chocolate. Have had 2 fingers of Drifter tonight, taking me to 2070 cals for the day. A little of what you fancy.....