$Invesco QQQ Trust(QQQ.US)Switched from March 13 to March 16, lost several times, didn't exit when I broke even dozens of times, lost nearly 300 before switching, sigh, it hurts! I always dislike small losses, always want to wait a bit longer, this kind of thinking is unacceptable! Averaging down too fast, didn't set a stop-loss, clearly know everything in my heart, but just unwilling to do it, driven by unwillingness to accept loss! Now shorting is also not a sure thing, can only firmly go long!