I'm Sick, So What?

I reincarnated in the novel that I used to read. I was the side character name, Annalise, the first princess that was neglected by her own father and died at such a young age because of her disease.

So what? As long as i do everything I want in this life before my role ends, it should be fine right?

I'm no in position to changed the storyline since Annalise was only mentioned once after she died and that's how the Emperor knew of her existence.

However, There's just a tiny bit problem.