It is a skill in itself. Many people call it mindfulness. And it should be taught in grade school along with meditation.
Instead of teaching them lies about president Lincoln, which is almost a waste of time, even if it was true, the schools could teach a life long skill at an age where it will make a great impact on their life.
And it is difficult. Every single time the thought creeps up, you have to reword it. Every time.
You are right on the money. Education ideas need a complete overhaul from scratch. Government should never be in charge of education or you will end up with what we have today every time.