Sometimes sticking to a long position is actually the wrong choice. The recent movement of ETH has taught me a lesson — the market doesn't always move according to our expectations. The originally promising direction suddenly reversed, and I was about to see a deficit of two thousand dollars in my account. The problem is, I was too stubborn about my own judgment, which caused me to miss the opportunity to take a reverse position. Honestly, this market cycle made me realize: stubbornness in trading is the most costly. Sometimes admitting a mistake, adjusting the position in the opposite direction, is much smarter than stubbornly holding onto a position.