Introducing myself

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Hi, I have been lurking for awhile and thought I would introduce myself. I am a mom of three boys ages 5,6 and 9 and the last few years I have been focusing on them and not myself and it shows. I would love to lose 40lbs this upcoming year but I really want to do it the right way this time. I have always done fad diets or low calorie diets and have always lost the weigh but have been unable to keep it off. So this time around I want to lose weight without killing my metabolism. I would love to have some friends with the same philosophy.