Truth emerges more readily from error than from confusion.

A wrong answer is useful because it is definite. You can test it, watch it fail, and learn something exact from the failure. Vagueness gives you nothing to push against; you can stay confused indefinitely without ever being proved wrong. Being mistaken is a position, and positions can be corrected.

Where you are stuck, force yourself to write down a specific claim, even one you half suspect is wrong. Then go find out. The embarrassment of being corrected is brief, and it buys you a clarity that more thinking would not have produced.