Its a bit to late in the season for a duck to go broody. I had 4 hens, all different breeds, go broody at the bringing of Summer. 2 of which took quite a while to break. We got into a system-
Walk into the house, get within 2 feet of the broody. "Quaaaaak chatter, chatter" she would say. I'd put my hands on my hips and tell her it was time to go. She'd look at me, tuck her head and reluctantly leave the nest. Bickering as she left.

I'de then take the eggs, and do it again the next day.
I usually let mine sit, but only 1 hen. If your not the first to go broody, you don't get to sit. Especially when the first hen hatches 10 ducklings lol!
