The art wasn't very good, either.
misc even bigger spoiler:
All of mankind is going to die a few months after that so there isn't much of a point. She actively attempted to figure out ways to avoid her death for several years (with the help of a person with "know everything" as a power) which led to her "current" level of insanity. All of the people with powers are mentally fucked up in one way or another as well so eventually (or possibly due to how her power locks the future) once she gave up on changing it the future fallout gets really messy.
She wouldn't have THAT much time considering she'd still have to look the age she was when she gets shot.