Lmfao if you want an example of trauma changing an individual done right, go see Kaneki from Tokyo Ghoul. It takes time and build up, feels natural, and even still he retains his core personality, constantly fighting with himself. Maki's 0-100 is completely artificial, in an instant an entirely different character was born, she is written for 12 year olds who crave an edgelord female. Nothing wrong with you liking that, but "objectively" let's not make Maki this super deep well written character.
It's better to have simplicity (Toji) which serves its purpose, than to have fake depth (Maki) which falls flat in the writing department. If you can look past that hats off to you, you don't have to stop enjoying the character.