A trading strategy provides structure before, during, and after every trade. Before entering a position, it helps identify high-probability setups and define risk. During the trade, it promotes discipline by reducing emotional decisions driven by fear, greed, or uncertainty. After the trade, it allows traders to objectively review their execution, learn from results, and refine their process. By combining technical analysis, risk management, and psychological discipline, a well-defined strategy transforms trading from a series of reactions into a consistent, repeatable decision-making process.