The biggest difference between chipping time and chunking time is that chunking time allows you to a)divide your time into very small blocks and work on small items first.
b)focus your time and energy on the tasks you need to complete.
c)take breaks whenever you need to because you are working so long.
d)work for hours at a time on one project and celebrate its completion.

I think it's B and C (viewpoint)

(uncoocked) vegetables contain more carbohydrates than(cooked) vegetables contain calcium amonium nitrates that contain more carbohydrates

don't worry, but do consult a doctor.

explanation:

having a high metabolism at age 13 is not abnormal.   however, if you are concerned, do consult a doctor.   the doctor may identify a correctable issue, and then you'll have your answer.   in the meantime, there are a few steps you might consider.

first, reflect on just how much physical activity (work out and dancing) you are getting relative to your caloric intake.   keep in mind that if you are interested in gaining weight, you must have a higher caloric intake than output.   second, if eating robust healthy meals is not providing enough calories, you'll need to include high caloric, yet healthy, snacks.   i warn against using an over the counter high-calorie supplement (drink or food) until you have consulted a doctor.