Yes, it can be done. But i believe it is harmful to health.
It is important to understand why anger arises.
Anger comes to us only when we have no control over a situation. As soon as this thing is understood we stop getting angry . Our focus is on the situation . If there is control over the situation , there is no anger , and there is no benefit to anger. By Accepting that situation the cause of anger ends.
First of all, anger should not be controlled, its a form of energy which should be transformed otherwise that will lead to physiological as well as psychological issues. In order to deal with anger, one need to understand the underlying causes, situations/people that evoke anger, etc. Then one need to think about the relevance of the anger and think of alternative responses that could be used to replace the previous responses. Lastly, with response substitution, there is need to develop calming down techniques to reduce physiological and psychological adverse effects. Such as back counting, time out, deep breathing, etc.
There ate different ways to control, but the main thing is the person herself is to control it.
1. Educate your morality and perspective, deepening your understanding of appropriate and inappropriate times to express anger.
Psalms 103:6,7 The Lord is merciful and gracious, slow to anger, and plenteous in mercy. He will not always chide: neither will he keep his anger for ever.
Mark 3:5 And when he had looked round about on them with anger, being grieved for the hardness of their hearts…
2. Cultivate an inner tranquility.
Col 3:15 And let the peace of God rule in your hearts, to the which also ye are called in one body; and be ye thankful.
I Tim 2:1,2 I exhort therefore, that, first of all, supplications, prayers, intercessions, and giving of thanks, be made for all men… that we may lead a quiet and peaceable life in all godliness and honesty.
3. Take control of your thought life.
Phil 2:5 Let this mind be in you, which was also in Christ Jesus
Col 3:12 Put on therefore, as the elect of God, holy and beloved, bowels of mercies, kindness, humbleness of mind, meekness, longsuffering
4. Educate yourself on and picture yourself living the positive qualities of forbearance, patience, and self-control.
Eph 4:29 Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers.
Col 3:13 Forbearing one another, and forgiving one another…
5. Become aware of your surroundings and what people and situations are either an inspiration or a challenge in this regard.
Acts 7:60 And he kneeled down, and cried with a loud voice, Lord, lay not this sin to their charge…
Heb 12:15 Looking diligently lest any man fail of the grace of God; lest any root of bitterness springing up trouble you...