mama looking for support

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My husband is deployed and I'm living with his family (taking care of my children alone though) I don't have any friends in this area and there aren't any gyms nearby (middle of nowhere) I wish I could have a workout buddy but since that is out of reach, it would be helpful to get some support elsewhere!!! I am trying my best to reach my goal of 130 (my scale bounces everyday between 158 and 160) so I have a lot of work to do. I have a horrible mountain dew addiction that I am fighting regularly but I really want to try to lose some of this weight and be more healthy. Nothing like having your daughter ask "Why are you so fat if there is no baby in your tummy anymore mommy?"