A technique used to show previous actions or situations is a flashback
Explanation:
A flashback is a technique used in literature to refer to the necessary information to set the scene or explain the origin of something either a situation or the behavior of a character. It is a transition to an earlier event or scene that interrupts the normal chronological development of the story since the story goes back and forth.
The answer is hyperbole. It is very unlikely that there was absolutely no money, absolutely nothing to buy, and absolutely nowhere to go. A hyperbole is a gross exaggeration, meaning that what is being said has been expanded to prove a point.