My Rebirth as a Villainess

Basically, it's a typical reincarnation story where a girl suffering from an incurable disease dies and is reincarnated in the world of her favorite novel, "Flame of Destiny"... but not as the main character, but as the main villain, who is supposed to die at 22, during a confrontation with the main character. And what's more, she is reincarnated 2 years before the official plot begins, when the main villain is only 18, and the main character is only 16! And now you have to choose what to do now, and is it possible to change the tragic fate of the main villain in this story, and therefore your own fate... or is your death already predetermined. P.S. If you have any comments about the plot, descriptions, etc., if you notice any errors or inconsistencies in the descriptions or plot that I didn't notice, or if you have any suggestions for improving the story itself, write all of this in the comments, I try to check in here every day!)