Who has done the water diet?

I'm 15 - 16 in less than a month. I am 10.76 in weight and am about 5ft 5 in height, I have lost a stone already though it has been long and I have a hard time sticking to not snacking as I love chocolate. I want to get down to 9 stone. I am currently a size 14 in trousers due to my thighs and bum being big, I am a size 12 or 10 in tops due to being a size D in bra size. I am 92 cms in bust, bellow bust I am 83cms, around my belly at belly on point I'm 81cms, hips are 96cms, right thigh - 59cms, left thigh - 57cms, bum - 107cms and waist 97cms. I want to know if people who did the water diet, work? And if so how long did it take? How much did you loose and would you recommend it, as I am willing to try it out