Has anyone done the Dukan diet?

if so could you email me and help me out on what im doing wrong??? i use cocoa powder a lot, sweetener, and fat free milk instead of skim milk, everything else is either less then 2% fat or fat free also i use normal soy sauce and eat fat free Greek vanilla yogurt a lot what am i doing wrong ? i did the attack phase for 6 days and now im on the cruise phase its been 2 weeks and 2 days but i have only lost like 5 pounds why ? im was 143 pounds and im a female 23 years old. please help me and my email is: Lilit.saryan@yahoo.com