My current trading system already has a positive expectation, but there are still obvious issues at the execution level:

During profitable phases, I tend to fear drawdowns, worry about profit retracement and fee erosion, leading to early take profits and an inability to grasp market trends;
At the same time, I have not yet established a layered take-profit and cost protection mechanism, which makes profitable trades lack a safety cushion and psychologically prevents me from holding positions.
Currently, I am simultaneously training contrarian rebound trades that take profits from the fire, and trend-following trades, with the core goal of strictly controlling losses, using layered take-profits and amplifying profit margins to repair the risk-reward ratio, and to shift returns from phase fluctuations to linear, replicable growth.