Knowing your own darkness is the best method for dealing with the darknesses of other people.
In times of great stress or adversity, it's always best to keep busy, to plow your anger and your energy into something positive.
Success is peace of mind which is a direct result of self-satisfaction in knowing you did your best to become the best you are capable of becoming.
This is the precept by which I have lived: Prepare for the worst expect the best and take what comes.