Antigoni graduated magna cum laude from the Psychology Department of the Panteion University in Athens, and was awarded a scholarship on academic merit from the Hellenic National Scholarship Foundations for her outstanding academic achievement. She then continued her studies in the graduate program in Counseling Psychology and Health, Education and Workplace Counseling of University of Athens. She is a licenced psychologist (licence number 454/2012) and a member in good standing of the Association of Greek Psychologists (ref. number 2187). She operates a private practice as a counseling psychologist and offers pro bono services at the Franco Basaglia Centre for Mental Health of the Association for Regional Development and Mental Health.