how do you convince yourself/know that hell isn’t real?

I am incredibly sorry if this is a rude post, i will remove if so. i come from Christian roots and i don’t know which direction to go right now. I want to go down this path but im scared. I’m confused why Christianity is so prominent on teaching about Hell if they’re against it and i’m thinking of turning down this path because i don’t know what to do at this point. So im asking this sub, how do you know that hell or heaven isn’t real? what do you think will happen after death?