The most successful people are those who are able to apply their discipline to the maximum. Disciplined people always adhere to their principles. Not infrequently, that person is liked for the way he has disciplined himself, he does not waste time doing unnecessary things and disciplined things is a symbol of leadership, an indication of an organized, planned, and orderly life. It is very useful to have discipline in any field.

Discipline in trading is often considered expensive because it requires significant emotional and financial investment. Maintaining discipline means adhering to a trading plan, avoiding impulsive decisions, and managing risk consistently, which can be mentally taxing. Traders must invest time and resources in education, tools, and strategies to develop and maintain this discipline. Additionally, disciplined trading often involves cutting losses quickly, which can result in frequent small losses before achieving profitable trades. This process can be costly in the short term, testing a trader's patience and financial resilience. Moreover, the psychological toll of staying disciplined during market volatility or losing streaks can lead to burnout or costly mistakes. While discipline is essential for long-term success, the initial and ongoing costs of cultivating it can make it an expensive yet invaluable aspect of trading.