12. I should have done homework or studied instead / But I got up on the wrong side of the bed. What technique is being used?
Idrom. Sumle, Metaphor, Personification, or Hyperbole
Figure out what is meant:
unes sentence explaming the meaning the line is saying

as for symbolic actions, the narrator's tearing down the wallpaper in an attempt to find the "woman" in the wallpaper represents her struggle to retain or regain her sanity.   the wallpaper has been part of her confinement and by her tearing it down, she is freeing herself from that confinement.

voracity is the noun corresponding to the adjective voracious, which means (1) eager to consume a great amount of food, or (2) marked by an insatiable appetite. veracity is far more common than the rare voracity, so the latter is sometimes used in place of the former.