and when I die, I will lose my soul, and my shell will rot in the ground
According to Evolution, you don't have a Soul. You are just like a vaccume cleaner. When the vaccume cleaner breaks, electricity no longer flows through it properly and it ceases to function. It eventualy decays back to basic elements over time. The same with humans. When the body breaks, the electro activity ceases and the body ceases to function and decays. There never is a soul. What you perceive as your personna is just a phenomena resulting from electricity flowing in the brain. It's a bi-product of the electro chemical activity and in this paticular enviorment called Planet Earth, this activity can spin up to huge levels allowing the phenomena to morph into complex bi-products like self consciousness.
Under Evolution, you are more like a soap bubble. As a fully formed bubble you can see it rise in the air, and when it pops, it ceases to exist as a bubble and becomes mere liquid again. But there is no remenant of the bubble that lives on in some other state identified with the bubble. Just the core elements reorganized.