Do demons hang around the cemeteries?

No, not in reallife. Graveyards are real but they're not haunted and they're not even that scary. Just calm down and don't be afraid. You'll be fine, even if graveyards are real. There are no such things as ghosts, vampires, werewolves and Zombies in reallife cemeteries. Reallife graveyards have people that are protecting cemeteries and keeping nice and clean and make sure that graveyards are safe to enter. You'll be okay even you have to enter the graveyard because there are people protecting and making sure that things are safe.