When it rises, I feel like I bought too little; when it falls, I feel like I bought too much. I am always caught up in the small fluctuations in the short term. Afraid of losing money, I only dare to earn a small profit and then run away, resulting in that tiny profit each year not being enough to cover the huge hole from making a wrong move. What really causes people to lose money is not the downturns, but the inability to hold on.