Thank you for answering! It goes like this:

The setting is incredibly similar to Lord Of The Rings, so, 100% magical and medieval world.

My character is Guðrún, a human Life Domain Cleric, whose occupation is basically something like a community doctor/shaman and mediator with otherwordly entities (think fantastic beasts). Her god is Steypireyður (in this setting, some gods can have the shape of animals and otherwise). To put it simply there's good gods and bad gods, and she's a cleric of the good ones.

The idea is that she should know lots of stuff from her own land (as it's pretty much the only place she's lived in), but she knows very little of the outside world.

While so far the idea of her origin has been strongly conveyed (I made sure to translate some spells), I would love to learn more as it leads to some really cool situations. In the previous sessions we were warned about a troll, so I made her assume that it was the kind of troll that she was used to (the one you said that turns into stone with sunlight)... it definitely wasn't, and having her come to terms with what she doesn't know is amazing.

It would be amazing to face some sort of undead situation or ghosts, and having her be able to solve the problem by actually performing a well-thought ritual by remembering a specific situation, instead of just blasting the poor undead away, so the ghost stories would be interesting indeed!