It’s simple. Everything in your life is your responsibility, and every negative occurrence is bad because of how you dealt with it, not what happened. You should expect to be treated unfairly, you should know that things will be hard, and you should be ready for stress and pain.
“One only understands the things that one tames…Men have no more time to understand anything. They buy things all ready made at the shops. But there is no shop anywhere where one can buy friendship, and so men have no friends any more.” — The Fox, The Little Prince