I always thought about a personal hell being like this:
The worst part of your life becoming an endless loop like Groundhog's Day. I'm talking the same scenario, the same actions, and the same woes with no breakthrough.
Like if a dude had cancer and beat it. Let's say that pain and trauma without the sight of overcoming with God's blessing ends up being an eternity of everlasting pain.
Its enough to make a wombat commit that over and over again.