If you really want peace of mind and inner calm, you will get it. Regardless of how unjustly you have been treated, or how unfair the boss has been, or what a mean scoundrel someone has proved to be, all this makes no difference to you when you awaken to your mental and spiritual powers.
One thing I know is that it is a bad idea to marry someone who had bad parents. If they hated their mother, if they were hated by their mother or father, your marriage will pay for it in ways both obvious and subtle. When the chips are down, when someone is sick or loses their job or gets scared, the old patterns will kick in and he will treat you the way he treated his mother or the way she treated him.
To have one's race brutally treated for so many years, even after the end of slavery and segregation, people are going to rise up with violence to attain what they believe is rightfully theirs. The most important thing at this time is raising the awareness of everyone; people need to be educated everywhere about all aspects of racism and how it affects people still today.