This weight is too heavy for your age. Practicing this weight every day will affect your normal development, whether it is height or bone development.

Everyone's genes are different, and some people will get fat no matter how they practice or eat. Especially in a period of long body like yours. Maybe it will be better when you are in your twenties.

You only need to practice 10KG now, so as not to hurt your health by pulling out seedlings. Of course, if this weight is too easy for you, you can increase it appropriately, but not too heavy. Wait until you are in your twenties and fully developed, and then practice. Some movements can be practiced while sitting, which can reduce the pressure on the lower limbs. More leg press helps to grow taller.

Also, if you want to eat more meat, you should pay attention to your diet, eat more high-protein food, adjust your mood, and strengthen other types of physical exercise, such as running and skipping.

I wish you a good figure!