Belief in an Afterlife seems rational

I'm open to just about anything, as long as it makes sense.
Why are you confused of our existence? We are like robots but made up of flesh, we have parts that transmit and store information, etc. Problem is we age and die off. It's like a robot shutting down and being erased. I try to look at it that way, as it makes most sense to me. I wish there was something else after this life, but I honestly don't think there is. Until someone can prove to me otherwise, I'm not going to follow some religion that shows me nothing but fake happiness to blind reality.