After so many years of contracts, the pitfalls I've encountered could circle the Earth three times. Today, I'll share three hard-earned lessons from the heart, and those who can listen are truly fated.

First, the profit is in hand, so don't mess around.

Many people start dreaming when a coin rises by 10%, thinking it can double. What happens next? They watch it return to the cost price, still mumbling "just wait a bit longer." Wake up, the price has returned to your purchase point, this is the market slapping you in the face—liquidate immediately, don't dawdle.

Rise to 20%? Take half off the table first. If it continues to rise, don't be envious; at least you have real money in your pocket. When it hits 30%, locking in 15% is the bottom line. You don't need to guess where the top is; just let the profits run. Relying on ironclad discipline is a hundred times more effective than your little cleverness.

The second one is even harsher: when it comes to losses, cut through the chaos decisively.

Bought and it dropped 15%? No matter how strong the fundamentals are or how active the community is, just cut it and move on.

Maybe it rebounded right after you sold it? That means you misjudged the timing, but it doesn't mean your judgment was wrong. This market doesn't lack opportunities. Remember this: a position without a stop-loss isn't a trade; it's gambling with your life.

The third most easily overlooked: don't just stand there after selling off.

If the price really drops after you sell, and you still have confidence in this asset - buy it back at the original price! The quantity of coins hasn't changed, and you'll have additional liquid funds in hand.

What if you hesitate and don't buy, and then the price climbs back up? Don't put on a brave face; just buy back when it returns to the selling price without thinking. The fees are nothing, the real loss is missing out.

Lastly, to speak frankly:
Short-term trading is not about mindlessly gambling; following trends also requires strategy. Only those who know when to sell are the real masters. Stop dreaming about catching the bottom and escaping at the top every day. By maintaining discipline and keeping the rhythm, you can survive in this market for the long term.

In trading contracts, it's not just about technology and luck, but also about mindset and intelligence. Only those who can internalize these principles have the qualifications to stand firm in the cryptocurrency world.