Lose Weight Question Need Advice! Please Help?

Ok so im currently on summer break from school.I have gained like 6 pounds. In the last few weeks and i just wanted to know what i can do to lose it. I am 13 years old and 5'8 1/2 160 pounds. How would walking help me lose weight?. What should i eat? can anyone give me a one day meal plan start (i mean little meal plan like breakfast, snack, and so on.) Please Help Me. I'll Appreciate itLose Weight Question Need Advice! Please Help?
First Off, Eat Lean:


Chicken


Tuna


Salad


Cottage Cheese


Yogurt





BUT, THE #1 THING is CARDIO, that means:


Treadmill - 30-60 minutes a day


Or


Just running outside, biking, ect.

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