The literary device that the author used in the passage is hyperbole. A hyperbole is a figure of speech that uses extreme overstatement or exaggeration to have a humorous, ironic, or heightened dramatic effects.
Example: I am so hungry I could eat an elephant.
Put yourself into Mary's shoes how do you think Mary felt when she becomes more independent and why do u think that?
The point of view it will be written in (first, second, or third person), the story line (what the piece will be about), and weather it will be nonfiction or fiction (will you provide facts, dates, etc. or thoughts and opinions.)