In cases of acute psychiatric crisis (suicidal thoughts, severe mental disorder or self-harm), private psychologists' offices cannot provide the necessary immediate treatment.
Please contact the emergency department of a psychiatric clinic on duty immediately.
A list of psychiatric department on duty hours per Health Region can be found here:

https://www.moh.gov.gr/articles/citizen/efhmeries-psyxiatrikwn-tmhmatwn-epikrateias