Second review tst: The biggest mistake in tst operation is to withdraw the principal. I mentioned during the first review that investing capital may not necessarily be the right choice. Nai Zi Ge has been thinking repeatedly these past few days and finally realized that the core problem lies in: During a bull market, all profits are floating, but during a bear market, all profits are gone and the principal is injured. During a bull market, blindly investing and losing money; during a bear market, being too conservative and losing money. The solution to this problem is to stop calculating floating profits in your mind. Floating profits in the cryptocurrency industry are all paper wealth, not real money. When a coin does not take profit and becomes BTC USDT, never treat this floating profit as your own money. This way, the mentality will be good. Be more rational when making decisions. 3. This mentality should bother many people. Once a coin makes money, it's all about floating profits, but in the end, it's not just about profits. When it falls, it's even more reluctant to cut flesh, and in the end, it's like a roller coaster ride with a bamboo basket drawing water and being empty. 4. altcoins are not money, altcoins are not money, altcoins are not money. Only taking profits into USDT BTC is real money. It is your weapon to resist the cold winter in a bear market.