Psychotherapy has a very close relationship with clinical (medical) psychotherapy, and then with psychiatry. On the other hand, psychological counseling, psychological training, and further developmental psychology adjoin it.
A psychotherapist differs from a psychiatrist in that he works with mentally healthy people. It is not psychotherapists who work with psychos, but psychiatrists and the police. A psychologist-psychotherapist works with mentally healthy people, but those who have psychological problems that interfere with a normal life. See →
People with more severe mental problems are usually called patients, those with minor problems are called clients.
Psychotherapy is divided into clinical and psychological. Psychological psychotherapy (hereinafter simply psychotherapy) is a branch of practical psychology, not medicine.
Psychological psychotherapy with the growth of the mental health of clients develops into psychopedagogy and developmental psychology, where healthy and prosperous people learn how to improve the quality and efficiency of their lives. There are no patients here, but clients or training participants achieving their goals. See Psychotherapy and Developmental Psychology