Here is a summary from a friend who experienced a margin call. Margin calls are always similar:

In the early years, I started with 50,000 in capital, gradually grew to 302,000 in the first two years, stabilized at 590,000 in the third year, and by the fourth year, I was completely reckless—by August, my account reached 3.78 million, and by November, it exceeded 7 million.
Back then, I was impulsive, quit my stable job, borrowed money to leverage, and always thought "luck will keep me on top." When the financial crisis hit, I not only lost all my profits but also took on debt. In the end, I had to sell my house to pay off debts, and my family almost fell apart. It was only at the low point that I woke up: all the money I made before was just luck, not skill.
After that, I didn’t make reckless trades for three years. I reviewed and summarized day and night, finally turning things around with a practical trading logic. These six core principles can avoid 80% of the pitfalls:
1. Don’t be a “coin collector.” I used to hold dozens of niche coins, most of which went to zero. Later, I learned that just three core strategies are enough: BTC for long-term holding and avoiding missed opportunities, ETH for moderate swings, and one strong sector leader (like AI, RWA). It’s much more reliable than random buying.
2. Stop when your emotions take over. Once, during a surge of liquidations across the market, I didn’t stop and lost 200,000 in a day. Now I have strict rules: if liquidation numbers spike, or three big bullish candles hit the hot search, or amateurs follow the trend and buy, I stop trading for two hours to cool down. It saves me a lot of losses.
3. Position size is a life line. In the early days, I went all-in and had no funds left to add during a crash. Now I have fixed positions: 50% USDT for emergencies, 30% quality coins for long-term holdings, and 20% for short-term quick trades. Keeping capital on hand gives me a chance to turn things around.
4. Take profits and cut losses without illusions. I used to add to positions after a 10% drop, which led to despair. Now I follow strict rules: take half profits after a 10% rise, sell completely after 20% gain to secure profits, wait for logical stabilization after a 5% dip before re-entering, and close positions after a 10% drop to reflect and avoid holding through losses.
5. Master the basics in a week. When I first entered the market, I bought blindly and lost badly. Later, I summarized three steps: look at daily candlesticks + MA10/MA30 to find support and resistance, watch for volume increases without price rise as false breakouts, avoid chasing after late-day surges in sectors, and in a week, you understand the market.
6. Building a position is like fighting a battle—do it in stages. I used to go all-in with 3,000 yuan, panicking at the first dip. Now I start with 900 yuan as a base, add 900 on support dips, add 600 on breakouts, and keep 600 in reserve for sudden dips—it's about rhythm, not speed.
The crypto world is never about luck; discipline is key to lasting success.
There are many lost souls in crypto, but I only wish to help those who can save themselves. $BTC $ETH #以太坊L2叙事再升级 $BTC $ETH