GaG, I'm 14 yer old, and 55 kg is it totally normal?

I'm on a diet right now, but I'm not sure if I'm so fat or not? I have a quite big thighs and little over belly, but is my weight normal? My dad says I have to be 50kg at least, but what's ur opinion?
GaG, I'm 14 yer old, and 55 kg is it totally normal?
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