Is there an absolute thing in this world? No. Therefore, there must be no absolute fairness in this world. Fairness and unfairness are only relative. Sometimes it's unfair to you, but fair to others. Therefore, it doesn't matter whether it is fair or not. As long as you don't have this boundary in your heart, you will naturally live more easily.
You know, no amount of complaints can change God's sympathy, and his decision will not change. The best way is to stop complaining and spend those efforts in more meaningful places. Maybe things will turn around.
How to face unfairness:
First of all, even if you are really treated unfairly, don't complain, but tell yourself that there is nothing wrong with it. Instead of complaining about injustice, try your best to do your job.
Secondly, the so-called unfairness does not have much effect. Many times you are unsuccessful because you always make excuses for your failure, and unfairness is the most commonly used one.
Finally, what kind of attitude there is, what kind of world there is. If you turn your back on the whole world, the whole world will turn its back on you. Fate can't be changed, only your attitude towards it. Therefore, as long as you can treat fate with an appropriate attitude, then fate will yield to you.