What my therapist did was to work with me consistently and diligently in the skill of recognizing when I have been triggered and exactly how to work my way out of that triggered reaction through some very step-by-step methods that on the surface were very easy but in practice took years to be able to internalize (which is why I think behavioral work generally does need to be long-term work, particularly when you are working to counteract decades of skewed thinking about the self that resulted from very young exposure to abuse).