Last winter, my childhood friend showed me a screenshot of his empty trading account while we drank in silence at a barbecue stall.

After a few words, he got teary-eyed, "450,000, just like that it's gone," the skewers in his hand were all bent out of shape.

Later, I learned that he smashed his phone, deleted all trading apps, and locked himself in a room for a month. When he finally spoke to me again, his voice was hoarse: "Maybe I'm really not cut out for trading."

I know his temperament well; he looks soft but has a stubborn streak deep down. Sure enough, when spring came, he suddenly asked me out for coffee, his phone screen lit up, and there was only 3,000U left in his account.

"Either completely quit or use this little money to carve out a path," he focused on the screen, not looking at me, but it felt like he was challenging himself.

No one expected that this 3,000U would eventually roll into a profit of 500,000.

— Not only did it fill last year’s pit, but he also earned a lot more. When I asked about the secret, he said it was based on three solid rules:

1. Positioning "Three-Three System": Principal cannot be lost.

In the past, he would go all in on a single bet, but now he changed: he invests at most 30% of the total funds per trade and immediately cuts losses at 10%. "I calculated, recovering from a 10% loss is easier; if I lose half, recovering is harder than reaching the sky," he patted my arm, "As long as the principal is there, there’s still a chance."

2. Follow the trend: Don't go against the market.

He no longer guesses the tops and bottoms randomly; when the market goes up, he buys, and when it goes down, he shorts, just like surfing with the waves. Recently, relying on this tactic, he made steady profits for over ten days, netting up to 8,000U in a single day; when he shared his success with me, his tone was much lighter.

3. Lock in profits: Don’t be greedy.

For every profit, he only keeps 30% to reinvest, transferring the rest out. "The numbers on the screen are fake; only what’s in the wallet is mine," he laughed, "I used to be greedy, putting all my earnings back in; now it’s slower, but more solid."

Now he has even created a small circle and pulled me in. In the group, there's a novice who started with 1,500U and grew it to 8,000U in three months; there’s also someone who was about to go all in but was stopped by him just in time, avoiding a margin call.

"Actually, many people lack technology; what they lack is the discipline to manage themselves," Chen Hao said this in the circle, and I recalled how he looked red-eyed while drinking last year, suddenly feeling that this is the real turnaround. @Yaya丫