Help .. i start a diet every week :|

Hiya i was wondering if someone could help me on what diet is the best? I am forever starting weight watchers but it seems to mantain my weight rather than loose it and when i have something like 2points worth of chocolate i end up eating the whole bar!! I am 17years old and 12.10 Stone a dress size 16. I really want to loose weight on my thighs and hips as this is where im biggest. So if anyone has got any exercise tips to tackle my main problems or anyone can reccomend a diet please get in touch as i am getting depressed as i just keep piling the pounds on which makes me feel crap that makes me eat more :|.

Thanks x

Help offered

My case is so like yours! I am always on a diet but I'm always overweight because I can never stay on it. Write to me. Let's try something together.

Fab