Yeppers....I'm on day 4 with my 4th broody to be broken,
and I think she's done<crossesfingers>.
The sooner you get her in a breaker cage, the less time it usually takes to break them.
It took me awhile this time to conclude that she
was broody, she toyed with it for a week...then I started to set her up to hatch out, but changed my mind.
My experiences pretty much go like this: After her setting for 3 days and nights in the nest, I put her in a wire dog crate with smaller wire on the bottom but no bedding, set up on a couple of 4x4's right in the coop and I would feed her some crumble a couple times a day.
I let her out a couple times a day(you don't have to) and she would go out into the run, drop a huge turd, race around running, take a vigorous dust bath then head back to the nest... at which point I put her back in the crate. Each time her outings would lengthen a bit, eating, drinking and scratching more and on the 3rd afternoon she stayed out of the nest and went to roost that evening...event over, back to normal tho she didn't lay for another week or two.
Water nipple bottle added after pic was taken.