Eh, I would say about 4 or so years in earnest but by then I was already a big fan of the words of Jesus and Solomon, I just disregarded the parts that talked about God, lol. And through my now wife, although it was more circumstantial: she's Muslim but not like a preacher who "convinced me", we had even reached the middle ground of me doing the rites but not believing... and then one day it clicked. 👍