I still remember the catastrophe in May 2022 clearly. Staring at the line in the push message "LUNA unit price fell below one cent", the whole portrait was emptied. The money came from a disgraceful source - it was squeezed out of the monthly mortgage repayment budget, thinking about turning it over. As a result, in less than three days, the account balance was only a pitiful fraction.

I stood on the balcony of my home for a long time that night, smoking most of the pack. The boss who sold fried skewers downstairs sensed something was wrong and asked in his throat: "Little brother, is the stock market trapped?" I waved my hand: "It's more exciting than that, digital currency." He snorted and didn't ask any more.

In the blink of an eye, three years later, relying on a set of stupid methods that could be laughed at, not only filled the holes, but also drove a car last year. I have seen too many people stay up late with various technical indicators to study - what MACD crossovers, RSI values - and finally are still harvested, and I realized that the real way to make money in this industry is not how complex your analysis is, but whether you can avoid those big pits and then seize a few opportunities.

**Let's talk about how to install an "anti-pit filter" for your coin selection list**

How reckless was I in the early days of entering the circle? Anyone in the group shouts "100 times potential", I don't even care what the white paper looks like, I just buy it. Now that I think about it, those small coins whose background cannot even be found by the founding team are no different from the charlatans who shout "cure all diseases" on the street. After paying a lot of tuition fees, I have figured out the iron rule of "three don't touch", which can help you directly filter out most of the waste:

**1. Small transparent coins are resolutely not touched**
The market value ranks outside the top 100, and the 24-hour trading volume is less than 10 million US dollars, so I don't even look at it. This kind of plate is so small that even institutions don't bother to pay attention to it, and the dealer can pull the market up to the sky and the earth with just a hand. By the time you rushed in, they would have withdrawn long ago.