14 years old, 5 ft 1 inch, go to school pretty much all day, dont work out.....i dont have time to....so how many calories per day should i eat to maintain/ lose weight?how many meals etc...oh yeah im like 105 lbs and really fattyalso im done growning so my metabolism is severly slowing down...about 2/3 years ago i was underweight and that was natural

It doesn't matter what you weigh, your age, height, etc.What matters is your metabolism.That is, how your body utilizes your food.Does your body store your food for later (in good times where there's not much exercise being done and or when food is scarce)?Does your body put food into immediate use for immediate use (you do lots of exercise and it expects you to do more very soon)?So... the answer is:  exercise more, eat better (i.e. healthier), don't starve yourself (lowers your metabolism; teaching your body to make more fat), teach your body to not store food as fat, but to put into muscles for immediate use by exercising.