"String-along songs about razor blade" were the author's narration of an advertisement on razor blades.
The topic—"Literary devices in American poetry"—would be a weak topic because such a topic is extremely vague and not specific enough.
American poetry uses many, MANY literary devices—and many of which are not unique to American poetry alone. Also, "American poetry" in general is too broad of topic.
Answer:
To have a simile, the word must be either "like" or "as" and must compare two unlike things. If it has none of these, then it is not a simile
Explanation:
confident,bold,courageous or fearless