See A GP For more info about accessing speaking therapies. They could refer you for local speaking therapies for depression. Precise duration is determined by the severity of depression. CBT is usually time restricted, and could only contain 8 to sixteen sessions in a few cases. 3 YEAR REVIEWThree decades in https://www.psychologytoday.com/us/therapists/true-you-psychotherapy-of-ny-palisades-ny/914388