I agree with Debra. You shouldn't let your lo be awake for more 15-20 min during the activity time. (My spirited little guy barely stayed up that long when he was a month old, and I hadn't even found the BW book yet. I just went by his cues.) She will get a lot out of that short timeframe, trust me. Also, make sure that the activity for that timeframe is something low key. Spirited/touchy babies don't need the extra stimulation. After that, I suggest starting a short wind down routine in a low key environment.
True, the book is not 'the Bible' and, above all, you should
definitely follow your parenting instincts. However, the one thing to keep in mind moving forward: as Tracy said, do things now as you mean to do when the baby is older and used to them. So if she gets used to nursing to go to sleep at 1 month, she will most likely be an 8 or 11 month old baby that wakes up in the middle of the night and can't go back to sleep w/o eating. It's a lot harder to change a baby at an older age than it is to get her used to things when she's still an infant. (The only thing I would change about the first few months of raising my DS - if I could go back - before I discovered the BW book, is to not nurse him to sleep. My life after those 3 months would have been a LOT easier!!!
)
One more thing... when you're exhausted or ill, you don't have to try to do any sort of training. Do what you need for that time period in order to get through it. Give yourself some time to rest and be well and then, when you've the energy, give it a go. (just hope that your lo hasn't learned any habit that are
too bad. ;-))
Try the new shortened activity time and let us know how things go!!