Moreover, you are still young, and it is no exaggeration that heavy contact will hurt or affect your development.

The professional way is to go to the gym. Only by finding a good coach can we get in touch quickly and effectively. Push-ups are effective, but it takes a long time to practice like that. And at the same time, eat some protein powder (not illegal drugs, bodybuilders will use it)

So, don't practice blindly, don't trust online methods, otherwise it will only play a negative role! To find a professional coach, contact the gym.