Have you also considered the possibility that she knows that she should not breed, due to health issues that may be hidden or have gone unnoticed?
It isn't unheard of for chams to develop cancers, for example or she may be lacking something in her diet that she knows is needed to produce healthy young.
Before you try to breed her, you would do well to ensure that her nutrition is absolutely
fantastic---consisting of a variety of feeders which are themselves fed very nutritious diets.
What you read and what actually works can be 2 different things.
For my chams, this is the way that works; I let the male and female see each other while she is securely in her cage and he is outside of it, a few feet away. Chams have excellent vision and they will see each other even from a distance.
If she doesn't give the "get lost" signals, only then do I open her cage and let him display and do his "look at me, I'm a great mate" dance, as he then makes his way into her enclosure.
Let me caution you, however, that breeding Jackson's xanths is more likely to cost you than to make any money for you and, although she may only have 10 babies--30 is not unheard of.
Jackson's females also have the amazing ability to retain sperm from a single breeding session and you may very well find yourself with another set of young to raise in another 6 months.
Many people have the heartbreaking experience of huge percentages of the babies die, even 5 months after they were born, despite appearing to have been healthy.
Consider what you're going to raise them in--a fishtank definitely won't do and if you do end up with 20 or 30 at once, you can't keep them all together.
They constantly step in eye other's eyes, grab each other's tails and generally walk all over each other.
Those gentle adult Jackson's are very different from the very hungry babies---who will even steal food from another's mouth while it is being chewed

As for food--better raise your own or plan on spending quite a bit on Hydei, phoenixworms, crickets and silkies because they're going to eat much more than you could ever imagine!
If you still think it's something you really want to do and you have the time, space, devotion and financial resources to do so, then I wish you as much success as I have had.
If you're interested in any healthy juvenile captive bred Jackson's xanths , I do have a few available.
