On February 24, 2025, I sat in an office in Lujiazui, Shanghai, looking out at the ships on the Huangpu River, and my coffee had gone cold. The price of Bitcoin was fluctuating on the screen, and this number that once captivated me now seemed so calm.

Ten years ago, I was just an ordinary programmer, staring blankly at code every day. By chance, I saw a discussion about Bitcoin on a tech forum, and that was my first exposure to cryptocurrency.

At that time, the price of Bitcoin was only a few hundred dollars, but the concept of decentralization deeply attracted me. I remember my hands were shaking the first time I bought it. It was a late night in 2015 when I bought 0.5 Bitcoin on the Mt. Gox exchange (which had not collapsed at that time). The next day, I encountered a crash, and the feeling of my heart racing is unforgettable to this day. Later, I realized that this is the daily life in the crypto space.

The bull market in 2017 was my first taste of success. Back then, various altcoins were emerging, and I profited by chasing the highs and cutting the lows, with the numbers in my account continuously inflating. But the good times didn’t last; the bear market of 2018 came quickly and harshly, and my assets shrank by 80%. During that period, I couldn’t sleep for nights on end, and my hair fell out in clumps.

What really changed me was the wave of 2020. I began to delve into smart contracts and liquidity mining.

These technical details are no longer about blindly following trends. I have learned to diversify my investments and established my own investment strategy: 60% in mainstream coins, 30% in potential projects, and 10% for high-risk speculation.

In 2021’s NFT frenzy, I seized the early opportunity with Infinity. It wasn’t due to luck, but because I had been closely following the blockchain gaming track. While others were still discussing 'why are these images so expensive,' I was already thinking about the sustainability of gaming economic models.

Now, my assets have exceeded 30 million. But I know that in this market, today’s winner might be tomorrow’s loser. So I now focus more on risk management, investing only with funds I can afford to lose.

As someone who has experienced three cycles of bull and bear markets, let me tell you: the following three things are what you absolutely must not do in the crypto space.

1: Don’t touch contracts, don’t hold positions, don’t chase after low-quality tokens.

2: The most dangerous thing you can do is to frequently buy and sell, chasing highs and cutting losses.

3: The most dangerous thing you can do is to put all your coins in one wallet address or exchange; it’s riskier than trading futures with leverage.