Thing is, it don't matter what we tell ourselves the story about the afterlife is, or what our upbringing taught us to believe in, be it any of the many forms of religion, which mislead people to this day.
The thing that matters is recognizing the fact that there is a creator, that he wanted us to have an eternal life/existence with him in it, and that due to the sin described in the bible caused by Adam and Eve, and the rejection of his rules, we (the descendants) all now will be judged, by the creator on what we have said and done with the life that he has given us.
Calling your self a Christian, or Roman Catholic and going to church every Sunday doesn't mean you going straight to heaven when you die, being a Buddhist and not stepping on any bugs don't help you come back as a dolphin either.
Jesus never started a church called the Christian church, that was just a name given to the followers of Christ, after the resurrection to persecute them, after alot of people started to follow his teachings, and believed in his divine nature.
The story of Jesus casting out the demons that possessed a man into to the pigs, that then ran off the cliff, is a good example of his power, the demons recognized him from a distance, and were scared of him, begging not to be cast into he abyss preferring to inhabit an unclean animal than go to the place set aside for the imprisonment of evil spirits, and even the pigs themselves preferred death than to co exist with demon possession.
Pick up a bible and try reading it, you'll be surprised how accurate it is