What are the triggers or circumstances that cause you to lose your peace? Be honest with yourself about what they are.
Assume that your ability to let go and maintain your peace isn’t as good as you think it is. Because the danger isn’t in underestimating that ability. The danger is in overestimating it. The “danger” is that your behavior will change in a negative way. Not only would that make you unhappy, it would make the people around you unhappy as well.