Everyone starts where they start. Now, keep it up. If you live within 200 miles of an SS coach have at least a few sessions with him/her. The book is great but without a coach to help you at least from time to time you may well get injured and discouraged. If you live closer than 200 go have regular sessions with a SS coach.
If neither of those options is available try online coaching. Several coaches offer it.
Go get 'em!