Establishing multiple levels of goals can provide a clear strategy for managing challenges during a long-term endeavor, such as a marathon. Initially pursuing an ambitious goal may not always be feasible, and adapting to circumstances is crucial. Monitoring physical signals, such as fatigue and heart rate, can guide necessary adjustments to maintain performance. When faced with unexpected setbacks, like cramps, the ability to recalibrate and opt for a sustainable approach can prevent total failure and ultimately lead to personal achievements. Success isn't solely about meeting predetermined targets; instead, it often arises from enduring challenges and making strategic decisions that allow one to finish strong.