Someone always asks me: "How have you been in this industry for so long? Not getting carried away in a bull market, not panicking in a bear market?" My answer is straightforward—it's not because of some extraordinary talent, but because I follow a set of rules to constrain myself.

Many traders are actually not bad. Among the people I know, some read K-lines better than I do, get information faster than I do, and are well-informed. But in the end? They all fall into the same trap—always trying to turn things around with one big move.

I learned this lesson back in 2018. That year, BTC plunged from a high, and I got greedy. I borrowed money and used leverage to buy the dip, but I bought in the middle of the move. My account was liquidated, and I lost everything. Only afterward did I realize: "Haste" is the real poison. 90% of people in the crypto world lose money, not because of technical issues, but because of their speed—FOMO chasing after rapid surges, and panic selling at dips. To put it plainly, it's not the market that loses, but your adrenaline.

Later, I set three strict rules for myself. They might sound a bit "stupid," but they really saved my life:

**First, never risk more than 30% of my position.** Even if I am confident prices will rise, I only dare to allocate 20%-30% of my capital. If I lose, it doesn't hurt my overall health; if I gain, my mindset remains stable. During ETH's recent rebound, I bought in three times, adding a bit each time it dropped 5%. My average cost was lowered, and I took partial profits when it rose 10%. It may not seem like much profit, but my account curve steadily climbed upward.

**Second, set a stop-loss line on my phone wallpaper.** If the daily drawdown exceeds 5%, I force myself to turn off the computer and walk the dog; if any trade loses 8% of my principal, I must cut my losses immediately. Sounds a bit cowardly? But this "cowardice" has kept me alive until now.