.imperfect or faulty."complaints over defective goods"<span>synonyms:<span>faulty, flawed, imperfect, shoddy, inoperative, malfunctioning, out of order, unsound;<span>More</span></span></span>
Simile- Homework is to school, as money is to work.
Metaphor- You must do your homework before you can get a job.
It could be
obsession. As obsession is defined as the reoccurring mental thought or idea of
something. This obsession has caught you up or to overthink. For instance in a
situation that has caught you up, you engross yourself with it. Overthinking like
obsession is a mental act or a cognitive resonance which is still different
from behavior or compulsion, as the word for it.