What they "should" do as per book and what they "actually" do can be quiet different. You can try to follow the routine to your best but to be honest, at 5 weeks mine would do something very similar - maybe 1
good nap and the rest were power (cat) naps of 45mins. If your lo is awake before the next feed, and is still cranky/tired, don't keep her awake until the next feed just for the sake of EAS routine. Try to re-settle her back to sleep and if she wont then keep her awake until she is showing tired signs (which could be as early as 20-30 mins). If you have to feed just before the next, in my opinion thats ok as well as long as she does not fall asleep at the feed. Some days will be better than others - you will have the routine down packed but some days your lo might not take a good 1.5 hr nap and you might have to change things around.
I also set a fairly early bedtime, which was around 6ish especially if she had a "bad" nap day.
Good luck
Layla