Don't wait until after you die to find out. Then it is too late.
There are only two places you can go to after death.
1. Heaven
2. Hell
If you don't accept Jesus Christ as your personal Savior before you die, then you will go to Hell for eternity. If you accept Jesus to save you from your sins and from Hell, then you will go to Heaven.
But you must decide BEFORE you die, not after.
We are all sinners, and the wages of sin is death, eternal death. But Jesus shed His blood on the cross, and died to take away our sins. He resurrected, and nows lives in Heaven. If we confess to Jesus that we are sinners, and then repent (turn away from) our sins to accept Jesus as Savior, then He will save us from the guilt of our sins and give us eternal life in Heaven. It is that simple. It does not require any work, no baptism, no church membership, no special process. Just accept Jesus.