Reincarnated On A Novel As A Non Existent Character(I am not Ethea)

A teenage girl, having experienced a lot, decided to end her life by reminiscing her past. She fell down to the ground and woke up to lavish things and old interiors. A woman by her side spoke to her, but she couldn't understand because she was distracted by the mirror reflecting a beautiful girl who looked nothing like her. This led her to realize that she had been reincarnated, revealing her past and the challenges she faced.

(DISCLAIMER I DID NOT DRAW THE GIRL ON COVER IT WAS DRAWN BY @K_pupu on twitter)