This reflective analysis report explores the various models, frameworks, methods, and taxonomies used in decision making. It provides a personal reflection on the author's own decision-making processes, highlighting the strengths and weaknesses of different approaches. The report examines the effectiveness of retrospective decision-making, rationality models, ethical decision-making, observation, intuition, multi-criteria methods, multi-voting, decision-making trees, and influence diagrams. It also delves into the complexities of decision-making taxonomies and their limitations. The report concludes with a discussion on the importance of understanding and applying these tools for making informed and effective decisions.