Have you ever noticed that every time you encounter a major market movement, it feels like you've changed your mind? For example, my usual habit is to look at the 15-minute EMA line, buy on a golden cross, sell on a death cross, and strictly adhere to that, which usually results in small losses and big gains. However, every time there is a significant rise or fall in the market, I completely ignore the EMA and buy and sell randomly, leading to significant losses. After the market settles down, I analyze the EMA trend and find that if I had followed my usual habit, I would have basically made a guaranteed profit. But I don't know why I lost my cool at that moment and disregarded everything. Perhaps this is just a lack of financial luck.