Of course, we cannot stubbornly wait for the market to develop towards our goals with expectations, but we should not always end up hastily when making profits, as if picking up a wallet for nothing and fearing the owner will recover it. Every time we make a profit, it's not a cheap choice. We pay the price of risk and are willing to take the risk of being harmed by a tiger. With this understanding, we should use our patience and wisdom to win the maximum profit while ensuring safety (with a certain surplus).