Core Insights - The article discusses the journey of a trader who initially experienced success but faced significant losses due to a lack of understanding of risk management and emotional control in trading [1][2][3]. Group 1: Trading Experience - The trader won a domestic derivatives competition but lacked knowledge in risk control and technical analysis, attributing early success to luck [1]. - After borrowing 300,000 and investing in the Taiwan stock index, the trader lost 150,000 due to a gambling mentality, realizing the difficulty of executing the strategy of holding profitable trades and cutting losses [2]. - Subsequent attempts to apply technical analysis led to further losses, highlighting the limitations and lagging nature of many technical indicators [3][6]. Group 2: Learning and Adaptation - The trader began to study various trading strategies and technical analysis methods, seeking to improve performance after experiencing significant losses [2][5]. - A pivotal moment occurred when the trader recognized the importance of directly observing price movements rather than solely relying on technical indicators [4]. - The introduction of algorithmic trading was attempted, but it resulted in even greater losses, emphasizing the challenges of automated trading systems [6]. Group 3: Key Trading Principles - The trader eventually identified that support, resistance, and trend lines are fundamental to successful trading, allowing for a more stable trading approach [7]. - Using support lines to gauge price trends proved to be a reliable method, particularly during trend reversals [8]. - The article emphasizes that trading in the direction of established trends can enhance profit potential and speed up the realization of gains [9][10].