[Flappuccino]

I, too, have an egg laying machine. I have figured out her triggers, though.
She loves to "mate" with anything big enough to climb onto. I can't give her paper to shred, jingle bells, I even have to break up avicakes into small pieces.

Anyway, if you can figure out what triggers her to want to lay, take it away.

Since she hasn't produced eggs yet, move her cage, rearrange toys, minimally decrease her available food, no warm food at all.

Obviously if she does lay, provide her with kale, broccoli, etc. for calcium.

Personally, I don't agree with the advice you were given about switching for fertile eggs.

Also, if your girl is a chronic layer no matter what you do, the avian vet can give her hormone shots.

Good luck!