Well, Op, i don't know you or what you've been through, if you're truly undergoing a worldview change. Like i have been these past coming up 7 months, and also Did Pic related with one of his books. You're probably closer to home than you think. For, me, i was always close to home. But just never bothered to truly, Knock, and look around. I'd recommend some of C.S Lewis's work as i'm still learning. As, to the specific questions you're asking, i'm not saying they're bad questions. But personally. Where i am, in my worldview is that, i just don't know it all, and i'm still baby steps in Philosophy, and theology. So, Check out Mr. Lewis's work, and Others. Cause again, the answers are out there. People have literally been talking about this since ever. And, if the fall happened. Then, i think it really seems to make, all that much more sense of the positions the human race has found its self in. But, i think J.R.R Tolkien, and G.K Chesterton. Do it better. Where Christianity, is the true Myth, The archetype, that makes sense, of the other ones.
Tldr: Read, Read, You're not the only one who's ever asked these questions, and human beings have given an answer. Especially in the Christian worldview, That's very well thought out. Once you get out of, pop Culture, and what media is telling you. Also including a vid, from a philosopher, i've been watching on youtube, about Orthodoxy, and how they do their Philosophy, and Theology. Is very Distinct. And that's where i'm leaning in my worldview. But recommend his vids very good, Philosophy.