Hi there!
It may feel awkward to go into the house where you pledged last year when you go through this year's Recruitment as a PNM again, but if anything--- you've grown in the past year, and so have the women in the chapter. Just go inside and talk.

Keep this in mind-- When a new member cancels her membership, sisters aren't angry; just sad, so please don't feel intimidated. It's also not something highly publicized to the chapter.
You may end up meeting up with some of the women who were in your new member class and have a great conversation-- there's something to think about that will help ease your mind, as you probably feel a little awkard about going back. You may even turn out to like that chapter and see yourself there-- or you may feel the same way about this year as you did last year, and it's more of a place to catch up with familiar faces and hone your conversation and think of good questions you can ask in each house.
Good luck