The root of most anger is pride, the disordered inclination to control the outcome of events or people, the putting of one’s security in how one deals with events, masters them, etc.
So we attack anger by going after pride…and the best way to go after pride is by strengthening the “opposing virtue”, which in the case of pride is humility.
We strengthen virtues by practicing them, by little acts, accumulated, habituated.
So we make “acts of humility”…first prayer acts…“Lord I want to be more humble…help me more”. We say that a lot, and we say it to God, with God.
Then we look for ways we can be more humble…and we perform them and reflect on them with God.
St Josemaria Escriva:
“That joke, that witty remark held on the tip of your tongue; the cheerful smile for those who annoy you; that silence when you’re unjustly accused; your friendly conversation with people whom you find boring and tactless; the daily effort to overlook one irritating detail or another in the persons who live with you… this, with perseverance, is indeed solid interior mortification.”
He also said:
"Allow me to remind you that among other evident signs of a lack of humility are:
- Thinking that what you do or say is better than what others do or say
- Always wanting to get your own way
- Arguing when you are not right or — when you are — insisting stubbornly or with bad manners
- Giving your opinion without being asked for it, when charity does not demand you to do so
- Despising the point of view of others
- Not being aware that all the gifts and qualities you have are on loan
- Not acknowledging that you are unworthy of all honour or esteem, even the ground you are treading on or the things you own
- Mentioning yourself as an example in conversation
- Speaking badly about yourself, so that they may form a good opinion of you, or contradict you
- Making excuses when rebuked
- Hiding some humiliating faults from your director, so that he may not lose the good opinion he has of you
- Hearing praise with satisfaction, or being glad that others have spoken well of you
- Being hurt that others are held in greater esteem than you
- Refusing to carry out menial tasks
- Seeking or wanting to be singled out
- Letting drop words of self-praise in conversation, or words that might show your honesty, your wit or skill, your professional prestige…
- Being ashamed of not having certain possessions…"