I also want to grow muscles very much, so I practiced crazily every day in those years. After three years of hard work, I found that I was not as good as those who came down from the gym for three months. After a thorough investigation, I finally found that it is difficult to thicken muscles by practicing without eating, because the composition of muscles depends on protein. Eating protein alone won't turn into a muscle, and protein can't absorb it if he eats too much. Only by exercising more to stimulate the muscles and then supplementing protein can the muscles become thicker. Good luck!