In the early morning of December 2017, I stared at the flickering numbers on the screen, my hands trembling.

Three minutes—just three minutes, the account went from six figures to 37.28U.

It was my first encounter with contracts, and it directly gave me a lesson. Sitting in the dark, my heartbeat sounded like a gong, each thump particularly loud.

Ten years have passed. From that 37.28U to now a seven-figure account, my biggest realization is not how to earn, but how to survive. Contracts are not a gambling table, but more like an operating table—every cut must be calculated.

About position sizing: Don’t risk your life

I have a strict rule: a single loss must never exceed 1% of the total capital.

Sound cowardly? On May 19, 2021, the market crashed, and countless people around me went bust; my account only retraced a maximum of 12%. How does that work? Suppose you have 10,000U, and you set your stop-loss 10% away from the current price, then your position size should be around 100U (10,000×1%÷10%). This is not a math problem; it’s a life-or-death question.

Being conservative is always better than going to zero.

About stop-loss: Don’t make excuses for yourself

I’ve seen too many people—the price drops, and they move the stop-loss downward; it drops further, they move it again; in the end, they have nowhere to retreat.

Once I set my stop-loss, it’s as solid as a rock. Either the price hits it and stops, or I hit it and exit. There’s no "let’s observe a little longer," no "maybe it can rebound." Wrong is wrong; admitting defeat is a thousand times better than stubbornly holding on.

About leverage: What you amplify are your vulnerabilities

Many people think high leverage amplifies profits. Wrong, it amplifies every small flaw in your strategy.

I usually use 3-5 times leverage, and I never exceed 10 times. Why? Because if you go over 10 times, with normal market fluctuations of 3-5%, you might get liquidated. At that point, you’re not trading trends; you’re trading market noise.

You’re fighting against the air.

Over the years, I’ve seen screenshots of liquidations at four in the morning, and I’ve also seen accounts ballooning by two zeros overnight. But what the market ultimately leaves behind is never the smartest or the most ruthless, but the one who understands "restraint."

Don’t hold positions.

Don’t go all in.

Don’t believe "this time it’s different."

Don’t double down when losing money trying to recover.

In the contract market, surviving is winning. Those heart-stopping stories will fade, but your account balance will remember everything.

I still remember that early morning of 37.28U—it taught me not how to win, but how not to lose. $ETH #ETH走势分析