this is how it works in the united states:
Under the law, no one can be required to disclose any information, whether verbal or written, that was confidentially exchanged within the following relationships:
doctor and patient
There has to be exceptions to that law, right? A psychologist is a doctor. They can't disclose the information you have confided to them. But if the information concerns someone's life, they are allowed to notify the authorities and probably to testify against you. What if you tell your doctor you are thinking of killing someone or that you have killed someone. The doctor could maybe be considered an accomplice if they do nothing with that knowledge. I don't know what the law says about having knowledge of financial crime and can the information be used against you.