Just for a moment close your eyes and then think about those times when it was very difficult for you to bear injustices caused by the people around you. It’s not easy to forget the unfairness, especially when they’re not even sorry for what they have done to you. You carry those grudges around and keep tormenting your soul.
With the passage of time you become more resilient and wise in your dealings with others. And for that, you also try to develop patience and endurance to handle unpleasant moments in life and try to stop complaining about trivial inconveniences. You just learn to face them.