The most expensive lessons in trading often come from the defenses you believed were foolproof. Have you ever lived through this moment? After hours of analysis, you set what you feel is the perfect stop-loss. You watch the price creep down, moving like a predator toward its target. It touches your line—a clean, precise hit—and your position is closed. You sigh, telling yourself it’s just good discipline. But then, in the very next minute, the price reverses with shocking velocity. It explode...