In this unpredictable market, some people can make money, but there are also many friends who are not doing well enough. When it's time to short, be afraid of going high. When it's time to go long, be afraid of falling back. In fact, this is human heart, and human heart is the most complex technology. Sometimes you will know that what really affects you is not the price, but rather too many things in your mind. The biggest risk in investing is not knowing what you are doing, a person without a goal will eventually achieve their goals for others; A person without a plan will eventually be planned by others. The biggest enemy of trading is not others, but ourselves.