The problem with afterlife theories is they miss the bigger point, there's NO REASON TO LIVE. Your life is not the skinsuit you wear. And it isn't the skinsuits everyone else wore.
We'll all be the same people tomorrow that we were today, with or without our memories. That's the only thing real about any of us. The only shape-able part of our selves is what hasn't happened yet.
So if it sucks today, it will suck tomorrow.
(you'll justify walled gardens here. im tired.)