At three in the morning, the phone kept vibrating.

On the other end of the video, a friend who sells insurance looked completely devastated—his hair was a mess, his eyes were swollen like walnuts, and his voice was so hoarse he could barely make a sound: "It's over... 6500U has all blown up..."

She opened a 6x short position with her entire account, and then the market suddenly reversed in the middle of the night. It rose by more than 2 points, and her account went to zero. "Two minutes! I didn't even have a chance to close my position!" She was so anxious on the phone that she was incoherent.

I couldn't help but gasp when she sent over the records: 6300U was all-in, and there was no stop-loss set!

This is not trading. This is running naked on the edge of a cliff.

Many people think that using leverage on a full position can make them rich overnight. What is the reality? The crypto world has never been merciful - driving a car without brakes at high speed, even a small pothole on the road can lead to disaster.

To be honest, I had a margin call in my early years as well. The feeling of watching your account go to zero can make you unable to eat for several days. After struggling for so many years, I finally understood one thing:

**Living is more important than anything else.**

Today I will share the most fundamental survival rule: **A single loss must never exceed 5% of the principal.**

This is not a conservative strategy; this is the bottom line for you to survive in this market in the long term!

Why 5%? Because even if you make 20 mistakes, you still have your principal. But if you lose 20% in one go, you're out after five times. Market opportunities are always there, but if you lose your principal, everything goes back to zero.

Many people think setting stop-loss orders is a constraint that limits profits. This is wrong! Stop-loss orders actually give you countless opportunities to learn from mistakes. Those who truly make money in the crypto world do not rely on a single instance of getting rich, but rather on that one big profit after numerous small losses.

Remember: Leverage is a tool, not a bet. You can use it to amplify profits, but the prerequisite is - you must first learn to manage risks.

Don't let emotions control your position. Don't let greed ruin your account.