You don't make the process entirely clear, but what you appear to be stating is that you were the subject of a petition for involuntary mental health care and that, rather than fighting the petition, you chose to consent to the care.

If once hospitalized, a doctor assessed you and made a diagnosis that you believe is incorrect, that's not a civil rights issue. If you disagree with a diagnosis, exercise your rights for correction or addition of a comment under HIPAA.