I wonder myself sometimes, but there have been other posts on here that says it gets a little harder each time one starts and stops and starts over again. This time, it is harder for me, it seems, even though I am following it pretty strictly. However, I continue to lose inches, feel better physically, have lost 22 lbs since Feb, but not a lot of scale weight (which I'm tied to). I keep hoping it will eventually pay off and have vowed to continue on hoping one day for goal.