I don't know if a topic under another name has been started similar to this, so please merge if necessary.
The point of this is to ask when and/or why did you start to believe/become interested in conspiracies? Was it a relative, friend, movie, literature, or something else, maybe all the above?
For me, it was my mother (as far back as I can remember); she made sure that I understood to look at all angles prior to making an opinion on it. I do thank her for that, but on that note, I can be indecisive at times because of it, so open minds need guides sometimes.