What is the difference between mental illness and mental illness? Great gods, help!

Neurosis and mental illness (there is no such thing as mental illness! Hehe) There are essential differences. First, the nature is different. Neurosis includes many different diseases, such as depression, obsessive-compulsive disorder, insomnia and mania. Is a general term for a class of diseases. Because of the pressure of life or some reasons, there are more and more neurosis patients in modern society. Like a cold, it's very common. Only the degree of illness is different. Others reflect strong pathological features. Mental illness is a serious mental illness. It happens to a few people and is generally hereditary. Second, patients have different self-knowledge of their own illness. Neurotic patients generally know their pathological behavior and live in the pain of regret and contradiction. On the other hand, mental patients know nothing about their pathological behavior. I firmly believe that there is nothing wrong with my behavior and my illusion exists in this world. I have no self-knowledge and self-control about my illness. Third, the treatment methods are different. Patients with mild general neurosis can be treated in time through psychological counseling and can be cured. Mental patients must be transferred to the neurology department of the relevant hospital. Through drug control and psychotherapy, it is generally difficult to have cured patients.