If the flaw lies in your choices, choose differently. If the flaw lies in your habits, practice better habits. If the flaw lies in your cognitive habits, you must do something higher up on this list in order to be able to develop different cognitive habits.

Your existing habits and choices (and arguably genetics and environment) may not be what created the situation which is becoming intolerable, but they are the easiest thing to work on.

You do not have to worry about making the right change or practices--start with whatever seems easiest. And try not to go against your 'better' judgement.