Change "barely" to "don't" and I would really agree.
There is no barely involved. You believe or you don't or you just don't know. :)
I just dont know.
Not a person who has ever lived, does.
That's not really true, modern medicine has brought a lot of people back from the dead, and the stories they tell of their visit to the other side are fascinating, at least to me. I've watched a ton of near death experience (NDE) videos on YouTube. If you go strictly by the consensus opinion of NDE survivors, heaven and hell are absolutely real.
Ive only read of people having positive experiences. But...the brain loosing connectivity could cause some odd experiences. I would like to think they are accurate and true. But, they were not so dead that they couldnt be jolted back to the realm of the living. Interesting, but inconclusive.
There are hell NDEs too.
Have you checked through any holiday brochures to see if they know?
Heaven and hell are existential states. They may extend into the afterlife, but they're alive and well in you right now.
When Jesus was asked by the Pharisees when the kingdom of God should come, he answered them,
"The kingdom of God does not come with observation: Neither shall they say, 'Lo here!' or, 'lo there!' for, behold, the kingdom of God is within you."