Help me improve my decision-making skills with practical exercises and mental models. Provide a step-by-step framework for making better choices in high-stakes situations. Include real-world scenarios where I can apply models like first principles thinking, second-order consequences, or probabilistic reasoning. Also, suggest fun decision-making games or thought experiments (e.g., the Monty Hall problem or paradoxes) to sharpen my critical thinking. Bonus: Give me a way to track and analyze my past decisions to identify patterns and improve future choices!