START FROM A SPECIFIC IMAGE, NOT A TOPIC
The difference between a verse that lands and one that evaporates is almost always concreteness. "Struggle" gives you nothing to hold. "Counting coins on the bus at 6am" gives you a scene, a time, a sound, and a rhyme family to work in.
So when you fill the box below, resist the urge to write a category. Write the moment. The model will widen it into sixteen bars — but it can only widen what you gave it, and a vague seed grows into vague writing.