There is no harm and definite benefits, in repeating one or more of the weeks as you go along. It is up to you how long you continue practicing the various exercises. Some of the exercises may not seem necessary to you. It is up to you whether or not to use or to continue after first trying them. Don't give up if they are too hard.
Persistence pays off.
If you suffer from Panic Disorder without Agoraphobia, you may need only eight to ten weeks of practice. Some people respond very quickly to this treatment. For people who have suffered for many years and have, through necessity, developed many compensatory strategies trying to avoid panic attacks, eight to ten weeks is a minimum course in learning skills. These skills will provide a strong basis to help you on the road of recovery. The graph at the top of each log is where you record the intensity of your symptoms.