You are stressed because you are trying to control things that don’t belong to you. The Stoics taught us a simple rule: The Circle of Control. Most of your energy is wasted worrying about the weather, the past, or other people's opinions. None of these are in your hands. Your only true power is your own mind and your next action. If you can’t change it, stop carrying it. Focus on your effort, not the result. That is how you become untouchable. Master your mind, and the world can never hurt you.