What is the experience of being woken up by a phone call at three in the morning? At the moment the video call connected, the girl on the other end had eyes as red as a rabbit, and tears were falling down——her 6000U account had completely dropped to zero.

"It just dropped by 3 points... Full position with 5x leverage, how can it just be gone?" Her voice was trembling. I asked her to screenshot and send the trading record: 5800U, almost all bullets fired in one go, not even bothering to set a stop-loss line.

Many people think that going all in means betting everything to quickly double their investment. In reality? It’s like driving a car without brakes on a mountain road; if the steering wheel is slightly off, you could directly fly off the cliff. The essence of liquidation has never been about the level of leverage, but rather how much principal you are willing to stake on a single bet.

Do the math and you'll understand: Suppose you have 800U, using 750U to open a 5x leverage position fully, a 1% market fluctuation will lead to a liquidation; but if you only use 75U to open 5x leverage, you would need an 87% fluctuation to lose all your principal—your risk tolerance is directly 12 times worse. This time she invested 6000U, putting 96.7% of her principal at risk, and with 5x leverage, even a slight pullback led to complete disaster.

I have also paid bloody tuition myself, and later summarized three "iron laws of survival," which have allowed my account to grow steadily by 80%:

**A single transaction can use up to 7% of the principal**: For an account of 6000U, a single opening position should not exceed 420U. Even if this position incurs a loss, it will only result in a loss of 29.4U, which is not detrimental.

**Single loss control within 1.1% of total funds**: Opening 420U with 5x leverage, setting a 1% stop loss, the actual loss after triggering is only 8.4U, completely manageable;

**When the market is hard to understand, simply stay in cash and observe**: Don't let unrealized gains make you impulsive in adding positions; wait for the trend to become clear, for key levels to be broken, and for trading volume to support it before taking action.

A while ago, a guy I knew kept getting liquidated every month. He followed these three rules for four months, and his account grew from 3200U to 55000U. Later, he told me: "I used to think that being fully invested was a gamble for my life, but now I understand that the real reason for being fully invested is to survive longer."

No matter how exaggerated the market fluctuations are, only those who survive are qualified to talk about profits. Don't fumble around alone in the dark; I've already stepped in all these pits for you.