The special k diet does it work?

hi im a 19 year old girl who has zero self esteem and is overweight and in 2 months im going to visit the one person who has tortured me my whole life about my weight and ive just heard about kerry katona who lost 20 kg on the diet and when i thought all hope was lost it finally came back so i was just wondering if anybody has done it can you tell me your results and what do all of you think about the diet please dont say just eat healthy and excersise ive been doing that my whole life and cant stick to it so if i do this and lose as much as kerry im willing to start over and eat healthy and excersise everyday once i done this diet