We Already Have a Peak System: What's Wrong with Being a Little Crazy?

[Rebirth & Revenge + Godly Rich System + Satisfying Story of Abusing Scum] Gu Shiqing is reborn. In her previous life, she was the real heiress of a wealthy family who had been switched at birth. She was found at 20, but only to be forced to marry Zhou Ting'an, a disabled fiancé, in place of the fake heiress. She agreed to pay for her adoptive mother's medical treatment. However, her adoptive mother's condition worsened, and she died within two years. After marrying Zhou Ting'an, she devoted herself to caring for him. However, he couldn't accept her disability and became violent, constantly beating and verbally abusing her. The Zhou family also bullied her, treating her like a maid. Unable to bear it any longer, she set fire to the house, taking them all with her. After her rebirth, she is bound to a Peak System. By completing tasks, she can reach the pinnacle of life. Since she has a Peak System, what's wrong with being a little crazy? Her first act after rebirth is to alter the paternity test results, severing all ties with her biological family. Her second act is to complete tasks to obtain a cure-all pill, curing her adoptive mother's cancer. After being reborn and completing her Nth mission, she now owns luxury cars, mansions, assets, and shares, amassing a fortune of hundreds of billions, firmly reaching the pinnacle of life. And those who bullied her in her previous life—none of them fared well.