There's this fantastic job opportunity for me, and I absolutely hate my current job.

I was excitedly telling my jobless sister about it, and she asked where it was and said she needed a job like this one.

I'm hesitating to tell her where, even though I know she could use it. She's disabled, and is collecting disability, but she's able to work sedentary jobs like this one.
I know I will be absolutely destroyed if she applies and gets it over me.
I've had a really shitty year, and I feel like it's been leading up to this one good thing.

I can't help but think that if she had been spending all of her free time job searching, then she would have found it first.

I know I wouldn't apply if the roles were reversed, but I also already have a job (even though pay is way worse, hours are crap, and I'm livid more than half the time), so it's different.

Should I tell her?