This sort of testimony strikes me as weak evidence. If you've just failed to kill yourself and don't want to be committed, or have been committed but want to be let out soon, this is exactly what you'd say regardless of truth.
That would explain why you said so to a doctor, but not why you agreed to an interview with reporters and said the same thing there.
What is something you used to believe, preferably something concrete with direct or implied predictions, that you now know was dead wrong. Was your belief rational given what you knew and could know back then, or was it irrational, and why?
Edit: I feel like some of these are getting a bit glib and political. Please try to explain what false assumptions or biases were underlying your beliefs - be introspective - this is LW after all.