It’s not a dumb question at all, the dumb thing is not asking. We all have to start somewhere.
A little bit about them being broody. They stop laying when they go broody for a couple of reasons. First, since it takes about 21 days of incubation for them to hatch, any egg laid after she starts being broody isn’t going to hatch. Plus a hen does not eat or drink that much while she is broody so she needs to conserve her nutrients and energy to live off of, not waste it laying useless eggs.
Before a hen even starts to lay she stores up excess fat. If you ever butcher a hen, whether she is laying or not, you will see that she has a lot more fat than a male, cockerel or rooster. That fat is what a hen mostly lives off of while broody. A broody hen will lose a lot of weight while she is broody since she doesn’t eat or drink much. But that is just fat put there for that purpose.
But eventually that fat runs out. Some hens will break from being broody at that point but some don’t. I think you are making the right decision to break her form being broody if you don’t give her fertile eggs to hatch. I use the cage with a wire bottom method. Give her food and water but nothing for her to use as a nest and leave her in there for three full days. Usually that’s enough to break them.