@unsure,
What the (i)F ;-)
In this thread you have mentioned several times that you 'what-if' everything until you exhaust yourself.
But do you really? And should you?
As for the first question, I assume you really don't what-if everything until exhaustion.
- What if Zeus and his homies really exist?
- What if Jehovah is the deceptive and evil one who has labelled the True God as Satan and makes Him look bad?
- What if the spirits of my ancestors will get mad at me for not offering them food?
- What if leprechauns can really give me a pot of gold?
- What if the Thetans are really? Should I join Scientology?
My guess is that there are enough topics where you don't what-if too much at all, but reject the claims as baseless or nonsense quite quickly.
It looks like you're hung up on the Biblical/Christian what-ifs. Imagine you were raised in a strict Muslim cult, you'd be having the what-ifs on Quran/Muhammad. It's your background and past that give an air of credibility and validity to your many what-ifs. Change the topic to Mormonism, Islam or Scientology and you're quickly done what-iffing.
Now to the second question: Should you what-if ad nauseam?
Of course you can, but it's a waste of time and energy.
What can be asserted without evidence can be dismissed without evidence.
We do this all the time. Doing the opposite would be unworkable. So up to and until you have seen some credible evidence wrt the foundations of your what-ifs, there is no (logical) need to entertain them. But it may be a psychological process that helps you break free from the Watchtower chains....
Good luck!