In 2019, I was sitting at a desk in a rental house in Guangzhou's urban villages, staring at that computer.

Bitcoin's red line was soaring wildly, turning 220,000 yuan of principal into 570,000. That feeling? I felt like I was floating, repeatedly thinking in my mind: "Damn, the crypto world really can change your fate!"

Then the market gave me a slap.

Before I could celebrate for three days, the trend reversed. The red line turned green, and the account balance started to plummet. By New Year's Eve, 570,000 had shrunk to 150,000.

The most heartbreaking part wasn't the decline itself, but the repeated thought in my mind—"Just a little more time, and I'll break even."

That thought was more tormenting than any crash. Day and night, it kept reminding you of one fact: greed will eat away at reason.

During that time, I finally understood that these things are not "get-rich-quick machines." Doubling, skyrocketing, crashing, halving—these are normal market phenomena. Those who survive are not those who gamble on luck every time, but those who know when to cut losses and when to wait and see.

Now, my trading logic is very simple: wait until the trend is clear before taking action, don't let hope turn into delusion, and remember to leave yourself an exit.