Hi Helen,
Congratulations on your baby girl and welcome to the boards
At this age it is quite normal for your lo to have her days and nights swapped, she is still adjusting to being outside of the womb.
At this age EASY is not a true easy, it is really only getting your lo ready for when she is a little older - around six weeks. The main thing about EASY is consistency.
I would make sure that you feed your lo every 3 hours and if she is napping wake her up from her naps for a feed. You say that she is quite hard to wake, perhaps when you get her up you could wipe her face with a warm damp cloth to wake her up a bit more for a feed to ensure that she is totally awake for her feed, then change her nappy after her feed - this is the most amount of A time she will need and then she will be ready to go back down for a nap.
Here is some info that might be of some help to you.....
Getting Started on EASYStarting EASY with a New BornHope this helps.
Paula