A psychotherapist is a mental health professional who uses talk therapy to help individuals, families or groups improve their well-being and resolve emotional problems. They use various techniques such as cognitive-behavioral therapy, psychoanalysis, or humanistic therapy to treat patients with mental illnesses, relationship issues, anxiety, depression, substance abuse, and other psychological disorders. The goal of a psychotherapist is to help individuals gain insight into their problems, develop healthier coping strategies, and improve their overall quality of life.