It is by practice that one grows into the perfection one aspires to be. Step one is to become conscious of the difficulty.
Step two is to stop justifying it. Whatever be the outer situation, anger helps none and harms everyone.
Try to watch over speech. Just practice this one thing, of not speaking under anger. Turn your mind away to anything else than the trigger. Generally it will die down after few minutes. Say whatever you have to say after that.
Offer the anger to the Mother and pray for Her Help.
Avoid situations and circumstances that are strong triggers.
Look carefully as to what triggers the outburst and see how little important or even unimportant are the things that ignite the plug.
Try to laugh a lot. There is nothing worth getting annoyed about, nothing else really matters except your inner link with the Divine. Value that above everything else.
Play games or do regular physical exercises to washout accumulated negative energies.
Affectionately,
Alok Da
