hi kate,
haha...know where you are coming from. I love me coffee too and rely on the hit it gives me to get thru the day. I think if you'll notice in the book she talks about getting the first two principles down pat before thinking about giving up the chemicals. So, work your way onto the nutrition plan, get asl much sleep as you need and go from there.
I find the diet pretty easy to stick to, and trying to get all the sleep i can but its hard. dont think about giving up coffee i dont think till your super comfy with the way of eating and have been sleeping well for a while...if you do it and you havent mastered stages 1 and 2 i think (but im not sure if my interpretation from thebook is correct) then you can really shock your body and your adrenals...you will need them to self medicate for a while...
hope this helps
stace