AdvoCare 24 Day Challenge

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I have been counting my calories religiously since May 2011. That and exercise alone have helped me drop 24.4 lbs. But I have hit a wall. Not matter what I do, I can't drop the last 15 or so. So, I started the 24 Day Challenge today. It's gonna be hard, but I have a lot of support and I know I can do this. Has anyone else done the 24 Day Challenge? I would like to get some support and encouragement through MFP. I'd love some input! : D