Anyone grow up Christian and is now an atheist?

Bri
I'm wondering if any of you were raised to be Christians and believed in the Lord and prayed religiously only to realize within time you don't believe in all those things you've been practicing? If this is the case, how did u come to realize u are an atheist? What age did the transition occur? And was your family accepting? I realized I didn't believe in Christianity's teaching when I was a sophomore in college and since have kept it a secret from my family (1-2 years have passed).