Find a reason beyond just losing weight - and let Zotrim that be your weapon. You will have to create commitment and consistency. What is that? Well, for some, they can tell the whole world, I'm going to lose 50 lbs this year and that will be enough to lose it. For others, they may have to create a rule by telling others, "This time next year I will be competing in a contest."
Or hey, "I will be running a marathon." The point, that "I will" has to be real to you, real enough to change you... It is such that, you have to find a reason beyond just weight loss and let that be your weapon. It works because when humans anchor on to something that is more than just their immediate goal, it aids them in reaching their destination. This is the psychological principle known as commitment.