I examined the Bible the same way I examined Watchtower. I thought that "Christendom" might be right. But the Bible was lacking- it was man-made.
A brief look at belief outside of Christianity showed me it was futile to actually look at each and every variance of rekigions- they are all man-made.
I found comfort in the way science seeks truth. It is if great comfort.
If you want absolute proof that something is the truth or that something does or does not exist, you are out of luck. But enjoy the journey of seeking.