The Five Year Rule.
Whenever you’re in any type of situation, good or bad, ask yourself this question: Is this person or event going to matter in five years? Say it’s a family members wedding that means something to you, you should obviously go to that event because in five years you will say to yourself “I should have gone to that”. If someone is giving you a hard time and they’re not that important to you, just let it go. It’s not going to affect you that much at the end of the day and it will feel better to get away from that type of negativity. Although it sounds really simple, it’s helped me let go of all the petty things that don’t really matter to me and help me find more happiness.
I hope it helps you too.