Life is way too short to let things that are pointless bother you. If something minuscule is causing problems in your life, let it go. There is no reason you should try holding on to something that is only going to hinder your growth.
When someone holds on to something that will keep them back and cause them problems they are hurting themselves. When you let go of your troubles that’s when you can move on and be the best you can be. It’s hard to move forward when you have something weighing you down.