I can understand how you feel.
I lived in England for a little while after leaving art school and studied in Manchester, was there for about 3 years.
Really liked it and found mancunians lovely on the whole, but it would never be home, culturally very different and not where I wanted to settle.
It takes time to find your niche, to feel at ease with yourself especially when you come back to such a changed country.
I'm in Co.Wicklow too, a bit further along the coast than you though.
We moved here from Dublin about 8 or so years ago after I had a nervous breakdown...long story.
I think for all the changes good and bad Ireland is still a fantastic place to live, there is still [just about] a laid-back attitude and a time to stop and chat.
Your daughter has Irish blood flowing through her veins, it doesn't matter where she was born it's where she lives now, where her roots will be, she can be whatever she wants to be.