you are a high school student, everything goes fine but not when you are hit by a car which causes you to die

suddenly you wake up feeling dizzy "ugh...I thought I was dead..." you look around feeling strange and shocked, when you look in the mirror, it makes you even more shocked, Turns out you were reincarnated as an antagonist in a novel you once read,Your mission now is to change all the crimes this character has ever committed, while you were thinking suddenly a waiter came in

"good morning my lady...Have you forgotten that today is your wedding day?" she looked at you with a frightened expression, was this character that evil before?