The Maid's Survival Plan!

On a cold winter night, I died. Probably due to overworking, I was a 32 year old company slave and was drowned in debt. The last thing I remember was walking back home, unable to get up in a dark alleyway with no light.. I then, woke up in a strange place..getting slapped by a random lady....soothing an unknown child...and doing chores in a fancy manor...? After finding out the child's name...I froze on the spot. ...I got reincarnated as a character (a side character to be exact) in the novel I read in my past life...and the child that stood infront of me was the Villainess, Beatrice Adora Amiel. She's fated to be killed by the Main Lead while the servants that served under her (along with me) was to be executed. NO! I REFUSE TO DIE EARLY! And from that day onwards...I decided to survive! And stop my Young Mistress into becoming a ruthless villainess!