I have been poking at Christianity for many years and I have read a whole list of books from both sides.
Christianity comes by divine revelation from God. Self-help and apologetic books are good. They are not God teaching you through divine action, though.... especially if a given book were in error. If it were in error, certainly God would have difficulty reaching you through deceit.
Learning scripture then happens by God. That's why you made incorrect statements about the Bible not being historically accurate. But how would you know? You wouldn't unless God told you.
Certainly if we listen to the opinions of world that shift like the wind, and natural sciences based upon uncertain philosophies and errors in reasoning, certainly then the Bible is wrong.
But why would we base what is true on the natural scientific philosophy, or even historical inquiry? It's a legitimate question to ask yourself. For example, can you prove this scientific philosophical assumption to yourself, beyond all shadow of a doubt, to believe it beyond any ability to poke holes in it?
https://en.wikipedia.org/wiki/Uniformitarianism
Yet to assume most historical inquiry is true, especially that of scientific quality is accurate you would have to prove that assumption without error. It can't be done. Science just makes the assumption. Which is fine for science, but it doesn't tell us whether it is true or not.
Only way to figure out if Christianity is true to is to seek God. If you seek men and our flawed justifications, you will find flawed justifications. The Bible teaches us our justifications are flawed.
"Where were you when I laid the earth's foundation? Tell me, if you understand. - Job 38:4
Here God question's Job's fundamental ability to understand anything, and presume that he would understand. In our pride, we can claim we know, but if we root out our assumptions, we find how little we do in fact know.
So then for me to justify God to someone is an act of futility ultimately. We can try, but God is the only one who can justify himself. It is only if God uses me that it would be effectual.