A Short Note On Anger
When you get angry, it is your body and mind that takes the worst hit. That which you are angry at suffers the least hit or no hit at all. Therefore, it is in your best interest not to get angry. But, if the circumstances ask, you can always act angry, be stern or reprimand someone.
When an external factor makes you angry, you have fallen prey to that factor; you are conquered by that factor.
When an internal factor made you angry, such as when you angry at yourself for some stupidity you have committed, you have fallen prey to your own expectations. And you have reacted in a way that doesn't solve the problem.
Every decision you make when you are angry will be wrong. If any happens to be right, it's only by luck. It best not to make any promises or decisions when you are happy and angry.
It is possible to train yourself to not get angry by internalising these thought and exerting them whenever you get angry. Overtime, these thoughts will automatically pop up during certain trigger points.
But, because you are not perfect, if you have gotten angry (as you will, many times), douse that aggression by externalising it in such ways it causes to harm or loss to others. Throw your own phone or destroy your own things if this is how you externalise anger. It is important to normalise yourself off the anger. Else, it will nurture itself inside you until you manifest it in a more severe manner.