I have to live for my family

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So now I have to get healthy so I can be around for a very long time for them. I am 43 , happily married and the mother of 2 and the heaviest I have ever been. I weigh 50 lbs more now then when my 3yr old daughter was 6 mos old. The stress of been an older Mom, going to school and dealing with financial issues has just gotten to me. I am an emotional eater as well as a Fast Food addict. I am tired ALL of the time and I cannot move very well. I have a very hard time getting down on the floor to play with my little girl. I am so fed up with myself that it is time to do something about it. I need to be healthy for my family and set an example for my children so they do not grow up with my bad habits. I am hoping that joining this site will help keep me motivated and on track.