HI GRANT,
I understand what you mean about the ads; I write ads. It takes a lot of space to explain some products; depending on what I'm writing about I may apply the rule of thumb "A little bit of knowledge, is a dangerous thing" The bottom line is what makes that product unique. At some point you'll need to get your feet wet. Experiments can be expensive so here is a company that is a little more forgiving and will let you return tapes and get your money back within a reasonable time, of course.
http://www.lifeskills1.com/stress.htm For those who find it difficult to us books and do the exercise. At the same time, But are kind of stuck with the written material, read the section into a tape recorder. It's a will known fact now that the brain cannot tell the difference between imagined or real experiences. ( At least instruments used so far indicate the brain is reacting the same to ether stimulus.) On average it takes about 30 days to develop a habit.
Don't worry about making the study period a habit,(The material should draw you in like a book you can't put down, revealing new and interest things) concentrate on taking every opportunity to practice whatever it is. If it's a physical motion, say something you normally do with your right, you want to do with your left hand as well. In your mind you may have it down, you believe, your doing it when your supposed to, and you feel the sprite, because it's something you really want to do. But, the left arm has undeveloped mussels in the area necessary to perform the feat properly, So repeating the motion strengthens the mussels and develops the, mussel memory = reflex. In JUDO one of the requirements is a student most performed each throw so many times before advancing.
Good Luck.