Stuck... blah

I have been doing what i'm doing for 2 weeks now cutting out bad foods such as chips etc , only drinking water, eating oatmeal, green tea, chicken, eggs, fruit , vegetables.. plus doing some kind of work out everyday. I work with kids so i'm always moving around.. then when I come home I do about 15 minutes of a mixture of weights/planks/lunges/crunches . Then usually I go for a walk with my kids but I can't seem to get past 142.... help

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