Heather - from my short experience (Gabby is only 2 months old), I have found that it has been much easier since I threw all theories out the window and listened to my heart.
While I didn't necessarily try to follow a major plan, I was hell bent on "routine" and was practically bashing my head against a brick wall when Gabby didn't seem to follow it. I was finding BFing very labourious and difficult and I was stressing out whenever she wouldn't settle herself to sleep.
The reason why people say that the first 6 weeks is sheer hell is because you and your baby are just getting to know each other. It is amazing how things start falling into place.
I have found that books are great as a reference but I try not to treat them as gospel because every baby and every parent is different.
Try to listen to your instincts. It may not be apparent to you but they will be there. You will know when something isn't right and you will figure out what is best for your baby. I know now that Gabby likes to be cuddled to sleep and sometimes on the boob. She will not settle herself to sleep no matter how hard I try. That's her thing!
Good luck with it all!