Dough left overnight looks like nothing is happening to it. Cover it, go to bed, and by morning it has doubled. The entire event took place in the dark, unwitnessed, with no supervision from you.
Learning has that shape. The month where nothing clicked is usually load-bearing for the week where everything does, and there's no way of knowing that while you're inside the month.
Respecting a process you don't understand is harder than trusting one you do. It means not tearing it open to check. It means giving the slow part its time on the evidence that slow parts have delivered before, even when you couldn't see any of the work being done.