Lost innocence or changed for better?

Recently one of my close friends came to US, just like I had only a year back. She and I similar in more than one ways, to the extent that, sometimes I see my thoughts being spoken by her, without me having to say them. So when I was talking to her when she had just arrived, I found myself saying - yea I used to think the same way or yea I used to say that too more times than I would have liked. Many times when I found her thinking in a particular way which was naive and emotional, I immediately gave her harsh dose of reality which nobody had given me. I realized I was as innocent then. And I learned things the harder way. I didn't even notice I was doing that untill she pointed out after a month or so, that yea some things happened, and I thought of you like how you had warned me against it. I realized then I need to stop. i need to stop this subconscious effort of warning her that what she sees now is completely different from what it will be a year from now. And although it is a hard and staggering reality to digest, it is still better to deal with such shocks as they come, than being warned about them a year in advance...

But in the light of all this I can't ignore the fact that i have evidently changed so much. And when I see me now, a completely different me compared to only year back, I can't help but wonder - along the way did I lose my innocence or did I change for better?