Technical analysis is useless. In an uptrend, where are the resistance levels? What overbought? In a downtrend, there are no support levels; it can fall without a bottom. In an uptrend, it's all about who has the guts, who buys early and holds on! Being gutsy beats Tsinghua and Peking. Don't be afraid of heights; those who are afraid of heights are destined to suffer, especially when trading US stocks. The strong get stronger, and the weak have their reasons for being weak. The market is always right; the mistake lies in one's own lack of understanding! Next time, if you hold stocks, don't choose to close your eyes and sleep when the drop is severe; similarly, when the rise is sharp, also choose to close your eyes, don't look, don't trade, don't sell too early!