Weight loss frustration?

I need to lose about 30 lbs. I'm female - 5'3. I have been doing a in- home walking program for 30 minutes about 3 days a week. For breakfast I'm usually eating a cup of special K cereal. I eat a snack about 9:30 a.m. of fruit, or low-fat sugar free yogurt. For lunch a Lean Cuisine and a small... show more I need to lose about 30 lbs. I'm female - 5'3. I have been doing a in- home walking program for 30 minutes about 3 days a week. For breakfast I'm usually eating a cup of special K cereal. I eat a snack about 9:30 a.m. of fruit, or low-fat sugar free yogurt. For lunch a Lean Cuisine and a small supper. Why has my weight loss come to a hault. Its so frustrating
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