The purpose of practicing martial arts, besides hitting people, is to keep fit and defend oneself. Know the word "purpose" first, and then practice. Actually, it doesn't matter what boxing you practice. If you haven't practiced, you should pay attention to the basics. As we all know, "ma bu" or "ma bu" or "ma bu" or "ma bu" or "ma bu" or "ma bu" or "ma bu" can be practiced first. And you said that you are over 50 years old, so consider Tai Ji Chuan. It is not difficult to learn from Tai Ji Chuan XIII. You can practice the 13th style first, and then practice Tai Ji Chuan and Gong Zhuang. After gradually realizing the power of practicing boxing or other things, try other kinds of boxing, such as wing chun boxing and long boxing, and there will be progress.