What story tho... I’m confused
You can infer the author/illustrator is not fond of getting a college degree since they are metaphorically saying it does not equate to a well paying job
What I usually do is try to remember a time that relates to the topic, then write out what I remember and soon enough the narrative will be filled out; on the other hand, if you have trouble coming up with a time, make one up that is believable and follows the topic