God is a personal being. The Bible is the only source of spiritual truth. The Bible contains history, poetry, theology, and prophecy. The Bible is perfect as written in the original languages. If you have an NIV Study Bible you'll see footnotes sometimes that say, "This verse is not found in the oldest and most reliable manuscripts."
You become a Christian when you repent of your sins, accept what Jesus did on the cross as payment for those sins, and you accept Jesus as your Lord. That means you do the best you can to live a holy life and to do what the Bible commands.
If you follow God with your whole heart God will change you into a different and better person in ways that would be impossible through self-effort.
God is not a force. You can't create your own reality. Crystals are nonsense. Occult objects are dangerous. There are no such things as nature spirits or fairies. They're all demons.
I've never even heard of fairies or nature spirits. "Occult" objects are just objects. It's kind of like saying tupperware is dangerous because it has meat in it which is true. Meat is dangerous to the planet. Inanimate objects don't have the power to be dangerous and demons can use just about anything or anyone to do their bidding; That belief comes from established and passed down biases/stigmas that manipulate personal perspectives.
You do have the choice of creating your own reality through free will, but as soon as you let go of the illusion of control, you can really let God do amazing things in your life.
Everything else is agreeable. I'm still learning; I'm curious to find people who are open minded yet educated and well versed in all things god.