Rebirth?
Revenge? Oh, NO, she is just a small citizen, and she has no deep grudges with anyone.
Fight against the best relatives? Although her grandparents are a little biased, they are not so biased as to use her family's things to subsidize their other sons.
Become a billionaire? If she had that kind of brain, she would have made a fortune long ago in her previous life.
Marry a rich, handsome man? With her EQ, she wouldn't be single even in her thirties.
What can she change if she lives her life again?