Many common problems among traders on exchanges are actually quite similar—guessing up and down every day, watching K-line charts, analyzing sentiment. And what’s the result? Most accounts are shrinking.

A friend shared his six-year trading experience, starting with 3,000 USD and growing to an eight-figure account, never experiencing a margin call during this period. His core logic isn’t based on insider information or magical indicators, but a trading system similar to casino risk control.

**The first key point: Lock in profits immediately**

When opening each position, set both stop-loss and take-profit levels at the same time. Once profits reach 10%, close half to lock in gains, and hold the remaining position as a "gift" from the market to continue trading. This approach seems conservative but is actually very powerful—over five years, this logic has resulted in more than 30 consecutive profits, with the account consistently growing.

**The second key point: Multi-timeframe layered decision-making**

Don’t fixate on just one timeframe. Use the daily chart to confirm the main trend, the 4-hour chart to judge trend rhythm, and the 15-minute chart for precise entries. Operate two positions collaboratively, strictly controlling single trade stop-loss within 1.5%, and aiming for at least 5 times the take-profit. During the major adjustment in 2022, some traders went long and short on two different assets simultaneously, with daily account gains reaching 40%.

**The third key point: Win rate is not the only indicator**

Even with a win rate of only 38%, as long as the risk-reward ratio is 4.8:1—meaning risking 1 dollar to earn 4.8 dollars—long-term profits are still substantial. Stop-loss isn’t about admitting defeat but a ticket to enter the market—staying alive is more important than making quick money.

**Three practical bottom lines:**
Divide your capital into ten parts, no single position exceeding one part, total holdings not exceeding three parts; after two consecutive losses, immediately stop trading and do something else, never chase losses; each time your account doubles, withdraw 20% and transfer it into safe assets like US bonds or gold.

Remember one thing: the market’s biggest fear isn’t your mistakes, but that you can’t get back up after a margin call.