Lost again yesterday. To put it simply, it's still caused by lack of sleep. When in a bad state, the originally clear trading logic becomes blurry, and I hesitate to cut losses on losing positions, while stubbornly chasing the market when I should be observing. In the end, it's a series of reckless operations, and the account suffers. It seems that without sufficient rest, discussing trading strategies is all nonsense. I need to reflect properly and make sure to get enough sleep before trading.