Let go of trouble, trouble will let go of themselves. There is not so much fairness in life, deflect your course, and the wind will become a tailwind.
Between people, the important thing is not understanding, but respect. If you are willing to stand in the other party's point of view, it is not difficult to understand what you do not understand.
No matter how rich others are, they will not easily give you a penny, there is no gratuitous kindness in this world, let alone gratuitous generosity.
You are easily angered by what others say, mostly because you deny it on the surface, but your subconscious agrees with it; Anger is another form of consent.