
based on what i see is she is basically feeling helpless because even the grandma unable to save her because her bad luck is too strong. Furthermore, she also afraid to enraged the spirit in any way possible or giving any hints that she can see any of them.
If the ghost know, it probably spread rumour and started attacking her everywhere. Even her ghost dad cant protect her from spirit consider he dont have much much power. I think if the demon(horse shape) in her house know, her dad probably wouldn't be able to prevent it.

her tip toeing around the ghosts trying to survive is the premise of the manga her magically getting powers would make less sense and make it too easy for her to survive we want to put ourselves in her place since she's a regular person like us and feel the panic of not being able to just easily cast away the spirits
Ok I understand she can see ghost and that she is afraid of them because she has 0 power to expel them…but it’s been getting repetitive don’t you think she should already by now learn a spell or something to get rid of them?