Originally Answered: Should I follow a 1,200 calorie diet?
"Should I follow a 1,200 calorie diet?"
No you should NOT follow a twelve hundred calorie a day diet. Twelve hundred calories a day, is not recommended for most people, and not for teens, unless it's been recommended by a medical professional where weight loss is concerned. There are reasons why such a low calorie diet, is NOT recommended, especially for teens. One is that most teens need to take in not less than seven teen hundred to two thousand calories. The main reason, and even for adults, is that the lower the calorie intake makes it more difficult to get all of the essential nutrients in, both at the macronutrient, and micronutrient levels.
Also you really don't need to lose weight, but work on toning up the body, to get rid of the stomach. Your weight, is well within the ideal range for your height. Now rather than try to give you a specific meal plan, I would recommend start first by cutting out when and where possible as much processed food, and snacks that are processed. Now my advice, is learn how to build your own meal plan that's healthy. It may seem complicated at first, but ounce you get the idea, it's easy, and becomes easier. I'll go farther in a bit with some examples, on how to do it, with some links to results as well.
However while some will claim that chicken breast is a high quality meat, the only thing high quality about it, is the protein. After that, it's not as high a quality as many think, at the nutritional level, the same apples with lean beef, and lean pork. But then my definition of high quality, is much different. A high quality meat would be something like the chicken liver, which will deliver more than fifteen times the nutrition, in a one hundred gram (about three and a half ounces) serving, than most all of what the muscle meats will. The same with some types of fish/seafood. Some are better than others are. For example canned pink salmon is much better than canned tuna, for overall nutrition, and can be used much like tuna can be.
Now on that search and the examples, as promised. You don't need a complex search, to find that information by doing it online. However modifiers will make a difference. Some of the modifiers to use, but it's not all of them, are baked, boiled, cooked, dry roasted, broiled, raw, and dry roasted. Now the search examples.
baked skinless chicken breast nutritional value
pan fried chicken liver nutritional value
Now take each of those, and open them in either separate tabs, or windows. Then use the drop down for each, and select the one hundred gram serving size, and go through each, comparing the differences. They will become very obvious quickly. The calories for the chicken liver might be seven higher, than the chicken breast, but the return for those seven calories, is a lot better. After you have done some research, you may see why I call muscle meat junk meat.
Also by doing this for yourself, you will learn a lot more, and a lot better, than having someone lay out a meal plan. Mainly due to the endless, and various possibilities. Now along the lines of what one vegetarian I'm familiar with says, become your own self taught, and self applied nutritionist. It's what I has to start becoming thirty nine years ago. I can only show and recommend for what to do, or anyone else. Also learn how to balance out the macronutrients to a proper ratio, and as to what works best for you. Now those essential macronutrients are, calories, protein, fats/oils, and carbohydrates.