Good for you to persevere! I encourage you to keep at it. YOU are worth the time it takes to stay healthy. You will be a great example to your children (when they arrive!) and you will have no regrets later in life. I wish I had been diligent to lose the weight I gained when I was your age. I'm 60 and I have found it harder to lose weight and keep it off the older I get. If you can figure out a way to keep it off and maintain, when you are 60, you won't have the regrets I have over not trying hard and being more disciplined to take care of ME when I was your age and during the intervening years of child-rearing.
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