Great thread and OP, Awen!
I've been reading and asking questions about religion all my life. The Bible is certainly not the definitive word from God unless S/He has a warped sense of humour or cannot avoid self contradiction.
So what do we really have that is reliable? If the Bible isn't a reliable source then how do we know that the spiritual experiences many claim to have (myself included) aren't products of our shared experiences with the JW and our own unconscious minds via intuition?
IMO, we don't have anything "reliable", ie, self-consistent, provable and logical to us. I have also had what I think is a spiritual experience, possibly more than one. Where it came from, I simply don't know, but it helped me get through a very bad time in my life.
And that is the single reason why I don't reject it or explain it away.
One thing I do believe is that there are many things we don't yet know. I choose to fill the unknown areas with optimism, and rely on facts, probabilities and the Golden Rule for day to day living. Not having certainty is a lot better than the dry, materialistic, narrow-minded doctrines of fundamentalist religions. Let alone when they are demonstrably wrong!
So far my relationship with Christ has gotten me through some very tough times that I don't think I could have handled on my own. Does this make me delusional to have trust in someone I cannot see or touch? As far as modern psychiatry in concerned, yes it probably does
As sciences go, psychology and psychiatry have spotty track records at best!