A coach is a professional who teaches and guides traditional techniques in China. Beating drums needs the guidance of professional teachers to practice. Instructors should not only go through long-term practice, but also have certain knowledge of anthropology, human science and psychology.

To break through the trough, we should do it step by step, not rush headlong into it. According to the actual situation of different people, we should make a plan to break the valley, and we must not generalize it. In other words, if it is from shallow to deep, and gradually improve, it is necessary to determine the length of time to break through the trough.