The perspective of "Shania's Diary" is first person point of view.
Explanation:
We can see that Shania's Diary presents the point of view in first person. This can be perceived, firstly by the use of the pronouns "I," "mine" and "my" by the narrator, which shows that the narrator is a character in the story being told by her. In addition, a diary is a text that describes the experiences of the narrator himself, so Shania is writing her own experiences in the diary and therefore has access only to her own thoughts and everything she saw, which is the main feature of the point first-person view.