In contract trading, those who don't understand when to exit will ultimately face a single outcome—the account going to zero.

I've observed many traders whose accounts grow from small funds to several times their original size, only to collapse entirely at a critical decision point. Often, it's not the market judgment that goes wrong, but from the very beginning, these traders never leave themselves a real retreat plan.

In some cases I've seen, accounts soar from tens of thousands to hundreds of thousands, only to be wiped out instantly due to a moment of emotional loss of control. At this point, the market itself hasn't worsened much; it's just that the trader chose to "hold on a little longer" at a critical moment.

I've also made this mistake myself. When adding to a position against the trend, I always thought I could wait for a rebound to break even; when chasing a trend, I greedily wanted to take more. The reality is often not a lack of opportunities, but that the stop-loss level wasn't protected, and losses snowball bigger and bigger.

It was only later that I realized, in leveraged markets, what truly determines life or death isn't how many times you make a profit, but how much your single largest loss can be controlled.

Now, my trading logic is very clear. Before placing an order, ask yourself if you can accept the worst-case scenario. Set your stop-loss level in advance; when the price hits it, exit automatically—no hesitation, no delay.

The higher the leverage, the lower the tolerance for mistakes. How much drawdown you can handle determines how large your position size should be. I never expect to turn the tide in one shot; I only aim to keep each failure within my manageable range.

The same applies to profits. Floating gains are not meant to stimulate impulsive trading but serve as a signal—it's time to start protecting your gains. Even if the market continues to fluctuate, the profits already in the account shouldn't be fully cashed out.

There's also an easily overlooked point: emotions themselves need stop-losses. After a series of losses, it's time to pause and adjust; when your mindset is out of control, you should exit calmly.

Opportunities and traps coexist in the crypto market, and very few can achieve stable profits. Instead of frequent trading, it's better to first learn how to survive longer in this market.