Not a JW experience here, but I did undergo a religious conversion. These days, I discard a doctrine if it doesn't "work". I've decided I'm not crazy, it was a crazy interpretation that screwed me up. So that's the practical side. But I'm not quite logical in my faith.
Because I have a BIG PROBLEM with "rational" or "pseudo-scientist" Christianity. I was not REASONED IN. My conversion felt much more like a rescue. There's something deep in my heart that bucks the trend. My brains and my background dictated my future (college, marriage, house in the 'burbs), but I needed MORE. I HAVE to have a higher purpose. Or shrivel up and die. So I found that higher purpose, even if it costs me. Mountains and northern lights and dew in the fields in early light still dazzle. They speak of the GREATER BEAUTY surrounding.