My clash of clans game has been overwritin by a friends game onto my GC, how do I retrieve my village?

My clash of clans game was overwritten when i entered a friends Game Center to play hers, i hit okay to save to my GC, huge mistake! How do I retrieve my village? I had not backed up my device after downloading the app, i tried deleting and reloading game, all i get back is her game on my GC. I opened a new apple id & gc, re download it still no good. The village is in limbo, i cant access it but it shows activity being attack and producing resources.