You may not be able to choose what you experience in life, however, you can always choose how you interpret your life experiences. Can’t you?
Whenever you experience something you labeled as bad, try to choose a perspective as an observer to see the experience as it is, you will begin to realize that all experience is indeed neutral, it was you who gave meaning to what happened making an experience good or bad, thus giving rise to your corresponding emotions such as feeling happy or upset.
You can be happy, upset or simply still no matter what happens in your life, the choice is always yours and your choice defines who you are at the time of choosing.