If you have a mental health condition (such as depression, anxiety, or addiction), there are many ways that therapy can be useful. In fact, mental health professionals often use therapy as a part of a treatment plan to help a person overcome the challenges of mental illness. For instance, therapy can help a person identify unhealthy thinking patterns, make better choices, and use healthy coping tools. Therapy is frequently used to assist with managing the symptoms of the psychological illness they are experiencing.