You asked a lot of really deep questions that I'd bet most Christians are asking too. It's hard to answer a lot of them over Medium, but my biggest tip for hearing God would be to submerge yourself in the Word. God rarely uses an audible voice to give answers. We live by faith not by sight (or hearing). Having faith isn't easy that's why many people choose not to. I encourage you to keep asking questions, but to keep seeking the Truth. The Bible is referred to as the "living Word," because it is relevant and able to constantly speak to us. God wrote us a book, and He continual uses it to speak to His children. 🤍