it is a crucial topic that every trader must approach with seriousness. Many errors in trading strategies do not stem from technical analysis or the system itself, but from execution, lack of discipline, and absence of rigorous testing. Among the most common mistakes are: trading without backtesting, ignoring risk management, over-optimizing strategies (overfitting), changing systems after few losses, and not adapting to different market conditions. Additionally, many traders fall into the illusion of the 'perfect' strategy, not understanding that all strategies have losing streaks. Another frequent mistake is using too many indicators, which leads to conflicting signals and analysis paralysis. To avoid these pitfalls, it is vital to have a structured plan, document each trade, evaluate performance with clear metrics, and have the humility to adjust the system based on data and not on emotions. Recognizing and correcting these errors is what separates a novice trader from a professional one.
