Some time ago, I suffered a loss in dual-coin investing. I initially planned to position myself at low levels to earn some interest, but ended up buying some BTC at high levels. At the time, I thought I could take advantage of a market correction by setting up a grid on the ETH/BTC trading pair, hoping to lower costs through diversified holdings. Unexpectedly, the prices of these two coins moved almost in sync, and the grid strategy was ineffective, instead increasing my losses.

So I decided to cut my losses, switch my position back to BTC, and immediately jump into a BNB/BTC grid. This time, the upward trend was too fierce; I underestimated the market momentum, set the grid too narrowly, and was triggered by two stop-loss events in a row. After readjusting the parameters on the third attempt, I finally stabilized. Who knew that just a few days later, the market started turning downward again, and I was caught in a trap once more.

Through this experience, the biggest lesson I learned is: grid trading may seem stable, but if you don't grasp the market rhythm accurately and set parameters improperly, it can actually amplify losses. Instead of frequently adjusting, it's better to understand the market nature thoroughly before taking action.