I think this might be one of my favorite Duolingo sentence so far, in both the English and Turkish versions!
(-dan) - "from" my enemies?
Where is the "can't" part in the verb? Is it "...amay..."? Is this different from kurtulmayacaksin?
Why not kurtulabilmeyeceksin?
Take a look at Selcen's comment above. The opposite of kurtulabilmek is kurtulamamak.