Lord, have mercy!
I do understand you, too. People generally call me a very soft-natured person - I am always smiling, and I am nice to others, etc. But there are certain things (related to situation in my country of birth) that always stir emotions in me, including the emotion of anger. In this highly emotional state, I can say things to people that probably ought not be said. Later, I might console myself that I was fighting for the "right cause" (and perhaps I was), but these emotions hurt people and they also hurt and destroy me.
There is one very strong prayer to the Theotokos where we ask Her to "banish from us... despondency, forgetfulness, folly, carelessness..." and to "deliver us from many cruel memories and deeds, freeing us from their bad effects." It looks like the Church knows that She can help us in that, with Her holy and most powerful prayers.