How does a fat 12 year old lose fat and gain muscle?

How does a fat 12 year old lose fat and gain muscle?

I am a 12 year old male. I'm mostly fat. I am 120 pounds and 5 feet tall. I have fat in my stomach, arms, chin, breasts, and thighs. I want to lose fat and gain muscle. It would be very helpful if you include a typical meal day. Please help me. P.S. I only have weights that are 5 lbs.

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