I was in a rather interesting discussion here on DA, when I got the good question "why are you not a Christian anymore?".
That made me decide to write a good and and well conducted explanation (in my opinion anyway ) so here it is, if anyones interested:
It started with the fact that I got migraine. I was very young then, and blindly believed in God. I, and my father (a man deep in faith), prayed every night for the migraine to disappear, but it never happened. Through the years I visited many healers, priests and such alongside with a medical treatment. Nothing worked, exept the use of medicines whenever I felt bad. The migraine grew worse, and I grew older. I began realizing how many bad things happened in the world, and I began gaining a nearly obsessive interest for the universe, nature, science, history and religions.
After a while I had educated myself so much that I realized that the Bible did not match most of the things science did. And even more, the science stuff seemed more likely and better proven.
I did not part from Christianity yet, I merely changed my views on the Bible to that of a book of morale and not facts.
Still the migraine grew worse, and at one point I had seizures 3-4 times a week. My hope in God and these healers disapeared, and I grew resentful. Very resentful. I became angry with religion and God. At some point I believed I hated God. How could this world be filled with so much wrong? I began reading the Bible for answers.
For each page I read, the more weird, unlikely end even insane it seemed.
So came the time for confirmation. All the members of my family had taken a Christian confirmation. I still had some vague ideas that there was a God, or something godly anyway, but i was angry and resentful and did not like some of the Christian ideals. I was also partly disgusted by the plan for the Chrstian confirmation. I looked towards other ways to be confirmated.
And I discovered the better alternative: a humanistic confirmation.
The plan there seemed much better, much more educating and neutral religious-wise.
I confined my choice with my parents, and it was not exactly well recieved. After a few weeks of discussions and even a few rows, they agreed that it was my choice to make and not theirs. Don't misenterpent me, I love my family and they are kind, but we do not see the same page in this matter (especially not me and my father).
The humanistic confirmation was as good as I had hoped, and those others who had chosen it seemed much more enthusiastic and joyful than many from the Christian camp.
After this I began to think more, and more, and I began to understand that it didn't matter if there was a God or not, because humans need to watch over themselves and not rely on a God that might or might not exist.
And so I fully departed the idea of Christianity, though not giving up my interest in religious ideas.