If you're interested in the prospect of afterlife, maybe look into the theory of Boltzmann brains :
https://en.wikipedia.org/wiki/Boltzmann_brain
If you want facts, you can think about it this way : After you die, your brain doesn't work. That means, you don't perceive any time. The universe keeps doing it's thing, over millions and billions of years, and you won't notice it. In that time, lots of stuff moves around, lots of chemical reactions happen. And if you wait for long enough, stuff might just form in such a way, to somehow form specifically your brain, and provide you with a conscious experience. This is extremely unlikely, and would take an extremely long time, but here's the thing : If you don't perceive any time, these billions of years between this actually happening and you dying will feel like an instant.
I think that this might be the closest thing to an afterlife