RocknRobin is totally right, Lori.
Any plan works as long as you will stick with it--so you have to find a plan that's right for you.
RNMom, a longtime member here, lost all her weight with SBD.
I'm so glad you've read the book! You really should with any plan you follow, but especially with SBD...you have a lot of freedom to work this plan around how your body works, but you can't do that successfully without the knowledge the book imparts. Reading the book before you start really sets you up for success.