Looking back at the trading records from three years ago, the account balance was stuck at the number 1200U. To be honest, my hands were trembling at that time. Previously, I had followed the market to chase hot topics, and as a result, my principal was reduced to just a fraction. Once, a fren saw me staring blankly at my phone and came over to take a look, then laughed: "With this little money, what’s the point of messing around? If you lose more, you won't even have enough to eat out."

But today when I opened my account, the number had jumped to 21,800 U.

There are no mysterious operations, nor did I hit any hundredfold coins, it's all about three words—controlling the position.

The following three are all lessons I bought with real money:

**Rule 1: Always keep some cash on hand, don't go all in.**

No matter how tempting the opportunity looks, I only dare to invest up to 35%. Last month, when ETH pulled back to a key support level, I actually wanted to increase my investment, but I restrained myself and only put in 30%, leaving 70% in my savings account. As a result, a few days later it dropped again by 5%, so I used 20% of my position to buy more, which significantly lowered my cost line. When the rebound happened, it didn't take long for me to break even and even make a little profit. Later, when I talked about this with my fren, she said: "You've learned well now; having some reserves makes you feel calm."

**Article 2: Only engage with projects that are clear.**

The crypto market has new stories every day. Recently, someone recommended that I buy a certain "animal-themed coin," claiming it has already risen tenfold. I went through the white paper thoroughly, and even the team background was vague, so I decisively passed. Now, I only focus on well-researched mainstream projects, such as the Layer 2 expansion progress of ETH and the ecological iteration of SOL. If I can't understand a project, even if others say it can increase tenfold or a hundredfold, I won't be tempted – it's okay to be slow; at least I can sleep soundly at night.

**Article 3: First consider the worst-case scenario, then calculate the gains.**

Before each order, I always prepare a "worst-case scenario": if I buy in with 800U and set a 10% stop-loss, the maximum loss would be 80U, which impacts less than 3% of the total capital. Many people are focused on "making a big comeback", but they never calculate the risks in advance, and as a result, one mistake can lead to total destruction.

In fact, where do small funds get so many miracles? It’s just about engraving the three words "control position" into your mind - not being greedy, not being blind, and not gambling on luck. Even with little money, it can slowly grow.