16 Years Old Boy Recently Ended a Diet. Always Hungry.?

I'm 16 years old, 6" inches and 159lbs, I recently dropped 70 lbs in about a year with the help of my family, but now I'm constantly hungry, yesterday I went to Hometown Buffet and had a full large pepperoni pizza, 3 spicy BBQ chicken breasts, 2 pieces of Baked Fish, 8 BBQ Ribs, Crispy chicken, 2 Hot dogs, and 6 full dishes of salad with peanuts on it. For dessert, 5 cups of Ice cream, 4 oatmeal cookies, full banana pie, a full coconut pie and an entire bag of rice crispies. ( I wasn't even full :S!)