Hi Christine,
It sounds to me as if you could use a reference source, and I've got one to recommend; learned about it here at LWL.
Do you know the name Tom Venuto? He's a trainer/author, who's written a book called "Burn the Fat, Feed the Muscle." It's an online book, and you can learn about it at:
http://www.burnthefat.com/.
Now, let me warn you about this website. In my opinion -- and this may be just me -- it's one of the most off-putting sites I've ever seen. It's hard selling to the max. I would not buy a used car from this man.
And that's too bad, because his book is totally fabulous. This guy is the real deal. The book is serious -- he gets into the science of eating; he explains metabolism and nutrition; he draws all the links between food, fitness and exercise. In short, he's a pearl.
You will find great support and buckets of answers here on LWL, but if you are looking for a lot of information in one place, you might try Venuto.
Bill Phillips has a lot of the same info in the BFL program, but if you want specifics, Venuto sure has 'em.
This, of course, is just my opinion. But you will find other recommendations for Venuto in various threads.
Best wishes,