I was exposed to "conspiracy theory" relatively early; in 1994 I was seventeen, and an older friend who I knew through trading bootleg concert tapes loaned me a copy of Bill Cooper's seminal book Behold a Pale Horse. He also gave me cassette copies of Cooper's radio program "The Hour of the Time." I took the ideas seriously, but the rabbit hole was pretty shallow then.
When 9/11 happened, the enormity of it totally overwhelmed my capacity for critical thinking, and it wasn't until 2005 that I was exposed to information contradicting the official narrative. Pretty soon I knew Israel was responsible, and I was furious that they had fooled us into fighting their wars and destroying our reputation around the world. I became that loathsome thing, an "anti-Semite." I had experiences in the drug trade that left me with a bad impression of Jews, but this was something on a whole other level.
I'm still furious at Israel, still think their supremacist beliefs are absurd and odious, and I'm still angry at the Jews for a long litany of reasons (mostly their monopoly of American culture, and what they do with it). But seeing some come out of the woodwork to resist the current trends is encouraging. I'm thinking of people like Mark Crispin Miller and Naomi Wolf. Reading Freud's Moses and Monotheism has tempered my attitudes, as I'm first and foremost a monotheist, and I realize the circumstances of their origins contributed to the things I find objectionable in them. I'm now a former anti-Semite.