I second Oyey's advice as I bought the same book when I first started tying a few years back.
What really helped me get started and not look back was to attend a beginners fly tying course at a local fly shop. I went to St. Pete's for mine but I am sure just about every fly shop will have something similar that will help accelerate the learning process.
Good luck! Remember, you are only "saving money" if you stick to tying thread midges, glo bugs and san juan worms. The appeal to tying for me is to catch fish on something I created. It also helps to understand what fish eat, when and why and I believe that simply by tying I have become a better fisherman.