You are many years behind the modern understanding of the brain and how it generates consciousness. The soul is an idea posited to provide a mechanism for continuation of consciousness and existence beyond death. It's mostly wishful thinking, but if it comforts you to believe it, go ahead. It can't be tested much less proven. If you want to catch up on the advances in neuroscience, I suggest you look into the work of Anil Seth. https://www.youtube.com/watch?v=xRel1JKOEbI&t=21s