It's funny, but looking back, I can suddenly remember all these doubts that I shoved out of my psyche.
I remember all the times I'd be studying and something just would not make sense to me.
I would cross-reference and think about it and look up other stuff on CD-rom, but still I couldn't wrap my head around it.
Eventually I would chalk it up to my own stupidity.
Never mind that I have always been a good student, never mind the glaring obviousness (now) that it didn't make sense because it was made-up BS; at the time I did what any good JW did: shoved it aside, waiting on Jehovah.
Usually this was when studying something like the Daniel prophecy books. You have to really have an imagination to see the parallels they draw; even when I was at my most zealous and wanted so badly to believe it, I remember thinking "these people in this room that are so excited about how obvious these prophecies are in line with events we see happening in our time, man, they are just really stretching here," and then I'd have to chide myself for having such a thought!
Edited to add: Though it wasn't explicity requested, ultimately what forced me into truly waking up from the JW's was: Disfellowshipping and Blood. I just cannot agree with those two JW doctrines. Their Bible verses on those two items are incredibly weak, and the practices themselves are far too damaging to enforce such things based on such weak arguments.