How long does it take to go to the gym to practice shoulder width, firmness and shape?

You can't just practice your shoulders. . Fitness is about symmetry. .

If you have scientific training and a scientific diet, it is estimated that three months will be enough.

Be sure to ask the coach in detail when you go to the gym. . Because many people practice blindly. As a result, I hurt myself a lot. . I wish you success! Ha ha.