Losing weight is not what you should worry about, its maintaining your new weight. 3 years ago I managed to lose over 40 Kg over a time frame of 10 months. The only way I managed to do that was by lots of workout and changing my whole life style. Unfortunately, the new style always got disrupted, lots of work, family responsibilities, less time to workout.. and the worst part was when I started looking back at food as a steam blower, it was my reward system. I did not manage to keep my weight and starting gaining more and more every month, I gained 20 Kg in less than a year! 

I am trying to catch up again but just never had the time or will to control myself..!