First of all, I think we should have a basic understanding of our current physical condition, and measure our body mass index (BMI) and body fat rate, and then decide whether to lose weight or shape.
Body mass index (BMI) is a standard that most people are familiar with at present. It is a commonly used international index to measure people's fatness and thinness. The specific calculation is related to height and weight. If it is lower than 24, it is the health standard. If it is higher than 24, it has already begun to expand to overweight or even obesity. Therefore, when the body mass index of girls is higher than 24, it is beyond the healthy range, and it is necessary to reduce the weight and body mass index by reducing fat first.
Body fat rate is an index that has been gradually understood in recent years. It represents the proportion of fat in the human body to the total weight of the human body, that is, how much fat you have in visible and invisible places. Body fat rate is not an indicator that can be judged decisively according to appearance. For example, some girls look thin, but after measurement, they find that the body fat rate is not low. This is because although she is not overweight, due to lack of exercise, the fat cells in her body are larger and the muscle cells are smaller, which is also commonly known as "skinny".
The range of body fat percentage of normal adult women is divided according to different age groups, but one thing is basically certain. If the female student's body fat rate is more than 30%, it can be determined as obesity.
To sum up, if your body mass index and body fat rate exceed the standard, or if your body mass index is normal but your body fat rate is high, then I suggest you lose fat first to lay a good foundation for shaping. On the other hand, if your body mass index and body fat rate are within the range, then you can focus on shaping, supplemented by reducing fat as needed, and build your perfect figure.