Everything happens for a reason and that reason leads you to another destiny. Accept the fact that shit happened to teach you something, to push you to grow, and to encourage you to change. Use this as a drive to make successfully change yourself for the better.
Like it or not, we are all always changing and adapting to circumstances as time rolls on. The positive thing about change is that with some effort we can help direct some (though not all) of the change in our lives as opposed to being victimized by it.
Each person's list will differ. One person's commandment is to "Say yes," another person's commandment is to "Say no." You need to think about yourself, your values, your strengths and weaknesses, your interests.