The Self Centeredness of The Ego

When someone is self centered a certain level of deception takes place. First, no matter how much someone is kind to a self centered egotistic person, the person never feels people have done any good. S/he does not see the sacrifices of others. Such a person over estimates their own contribution to any task. Such a person feels no need to thank anyone. S/he lives in a thankless world where one sees no mercy and kindness of others, and that puts a person in a position where they can not trust anyone but themselves. The Ego works then like a balloon, it blows up in good times, and then some event or issue takes place where the ego of the self centered person pops and deflates. Just as s/he was an overly happy person, now is an overly sad person. As the ego inflates and then deflates in the trials of life s/he becomes more nervous, more anxious, more fearful, more sad and then depressed. When people are egotistic they will in the end up being depressed because an uncontrolled ego is never happy, never satisfied. This is state and direction of the majority of the humans today. Only when the ego is in control can one overcome there anger. Only when the ego is control can one overcome not being a victim of others. Otherwise the ego says, "why me" Instead of, "maybe I am being tested, maybe I did a sin, maybe good will come out of this evil, maybe I being used to as a witness against the wrong doer and I will get my justice in the next life to come" How can one control ones ego in the most proper way? What can the ego submit to that will be fair so that ones ego can be put in control? That is the most merciful Allah.