First of all, if you want to do primary exercise, you can strengthen your chest muscles by doing push-ups, which will make your chest muscles tougher, and you should add a lot at the beginning. Every exercise is like this. After a long time, you will get used to it, so you won't feel tired and the effect is not good. You should increase the amount for yourself appropriately.
The second is to find some fitness equipment to exercise, and of course dumbbells can also be used. If you practice dumbbells, the right hand dumbbell will be lifted to the left chest by side lifting, and the left hand will naturally know. In this way, exercise through simple fitness equipment, and then there are some equipment in the gym.
The gym has barbells with adjustable weights. Lifting barbells to exercise chest muscles is the most effective and tiring action, so when doing this exercise, you must quantify it according to your physical strength.
Then there is diet, eating more protein, which is very helpful for the shaping of body muscles.