Your faith timeline.

[Mopsus]

0-13: Nondenominational fundamentalist Protestant. Never question the inerrancy of the Bible's truth claims, but occasionally feel dread at the impossibility of authentic human existence in the face of God's absoluteness. 
13-18: Total loss of faith. Very attracted to the arguments of New Atheism. Begin obsession with mind-altering substances as the "real version" of the religious experience.
18-21: Still not persuaded by the truth of any religion, but under the influence of Karen Armstrong, become interested in the moral similarities between disparate faith traditions as well as the phenomenological substance of spiritual experiences.
21-23: Extensive drug use.
23-24: Come to see personal and intellectual humility (surrendering one's will to a faith tradition) as more important than intellectual certitude in satisfying the human condition. Begin praying for the first time in a decade. Stop using drugs.

[Mopsus]

Come to see personal and intellectual humility (surrendering one's will to a faith tradition) as more important than intellectual certitude in satisfying the human condition.

What is a man,
If his chief good and market of his time
Be but to sleep and feed? a beast, no more.
Sure, he that made us with such large discourse,
Looking before and after, gave us not
That capability and god-like reason
To fust in us unused.

I understand what you're saying. It's just been my experience that reason isn't a good guide for human action, it can be used to rationalize any range of behavior, good or bad. It's in the heart that one distinguishes right from wrong (or that it's distinguished for us). That's my personal definition of faith.