This report delves into the critical role of self-awareness and self-development in cultivating successful leadership. It explores how these skills empower individuals to recognize their strengths and weaknesses, fostering personal and professional growth. The report presents two critical incidents, analyzed through the lens of the Belbin and Goleman models, to illustrate the practical application of self-analysis tools. The Belbin model highlights the author's strengths as a coordinator, implementer, and team-worker, emphasizing the ability to organize tasks, resolve conflicts, and facilitate team objectives. The Goleman model is used to improve self-awareness, self-regulation, and social skills. The author reflects on the implications of these findings, identifying areas for future development, such as pre-planning and leadership skills. The report underscores the importance of continuous self-assessment and the development of leadership qualities for achieving personal and organizational goals. The report also provides insights on how to use the knowledge gained from the self-analysis tools to become a good leader.