Maze of skulls

I find myself in a dark room. Room filled with skulls and only way out is one black door.
The door itself looks like harmless, but I never know whats behind that door. So I get myself together and open the door, after that door is a corridor also filled with skulls. Int his corridor seems to be many doors like this one. I try to open one of them, I can't. They must be opened from inside first. After while I notice I've got stuck in a maze of corridors, with doors everywhere. Only things what are there with me are skulls. Just plain old skulls. I wonder why they are there, maybe because all of them once had been here and never got out. But if that is true, then this place must be very old.
So I sit down to think about what to do. I pick up a skull and notice a markings on skulls back, in there its written name of a person I once knew. And then I get it, the skulls are from the people who I had been ignoring all my life. So I set off for another journey in a maze of skulls.
After many days of wandering around the maze I find a white door in this dark and filthy maze. Though I try to open it I can't. But next to the wall is written: "She must let you in". So I knock on the door. The door only opens a little but enough that I can see a figure of a girl I knew, but can't remember her still.
Then I realise why I am in this maze. I closed myself for people for too long that they all died. And only 1 was left. The one who knew about me what no one else knew.