ex christian- i am absolutely terrified of death

dying is genuinely my biggest fear. being christian, even though i didn’t fully believe it gave me comfort. but now i am genuinely terrified, even though im only 19. i don’t want to just go into an eternal sleep. i dont want to just be gone. i know people say that you don’t know when you’re sleeping so it’s just like that but it’s not, because it will be forever. everything people have said to comfort me hasn’t helped, even my therapist. everyone always says, “everyone dies at some point it’s not something to be afraid of.” it gives me panic attacks even when nothing bad is happening. i don’t want to just be gone. it is so mentally exhausting, just thinking about dying sends me into an inconsolable spiral. does anyone have ANY suggestions that could help?