One sentence, changed at one word
Here is the actual move, and it is small enough to be disappointing.
When the sentence arrives, and it will arrive in the form I am, put it back in the form I did. Not as a trick and not as positive thinking. As accuracy. I am a fraud is not a more honest version of I did something I believe is wrong. It is a less accurate version, and it happens to be the version that sends you back round.
You will not feel better immediately. That is not what it is for. What it does is keep the feeling attached to an act, and a feeling attached to an act has somewhere to go, which is the repair the tradition already gave you.
Then the day carries on. That last part is not a throwaway line. The day carrying on is the whole intervention.