Help me guys.

Sup guys! I,m from Brazil, and I think as everyone here I found out the Jehovah Witnesses's lies. Forgive me if my english isn't that good lol. So, as raised in that religion since I was 3 old, I always thought that something wasn't correct. My first shock was when I realized that it's cruel the way that the society treats the dissociated. I had a lot of it nearby my family, and as I said, always thought something was wrong. But actually, this is not about me. There's a girl, that used to go in the hall I was going till my 13 old(I moved to another city). Since I was 13 I love this girl, even if it's been a long time ago and I'm 20 now. I tried to show her the lies about the Society, but without success... I don't know what to do guys, I don't know how to wake up her to the truth, or just her can wake up herself? What I should try? Or there isn't something I can do? It's a lost case? All I can do is pray for the day she wake up? Please, rep me.