The rapture garbage you spout is fiction. This does not mean that you need to take a nihilistic attitude, you break free from the hypnotic lure of the rapture. The fact that the rapture was made up does not mean that there is no heaven.
If there was no afterlife, then it is specially important not to jump off a bridge, this is all you get then you better make the most of it.
Either way you logic is faulty and you have no facts. And you are a bad Christian for promoting a mortal sin.