2 Here to Crew if you teach.
First, welcome to the world of sailing. Good luck in your journey.
I believe this advice has been offered before, but if you really want to learn how to sail, you should not learn on a "big" boat (IMHO). Even if you only spend the first few dozen hours of instruction on a small boat (under 23'', say), it will help you much more than starting on a big boat.
The CG Auxiliary-taught courses are good for general boating knowledge (and you need to learn all that, too), but for the mechanics of sailing, you need either a knowledgeable sailing instructor or a sailor who remembers what it is like to learn the skills for the first time. "Knowing a skill" and "effectively teaching a skill" are not always the same thing - again IMHO.