Some philosopher said :
"When you die, you don't exist anymore. When you don't exist, you feel nothing. So death is nothing for us, because we literally don't exist."
Like you have no memories and thoughts before being born, you won't after being dead.
Anyway I'm Christian so I believe in heaven and I'm wondering what will be there.
(Also near death experience are a good preview of like, the 20 first seconds of your death)