Attack on Titan OC a new life

A girl named Suki Yuishe Cokora lived underground for 5 years until her father died. She and her mother went to live in the middle wall for the time being until one horrible accident. She and her mother went out of the wall to see the Titans when suddenly a Titan comes and squishes the carriage. Suki was the only survivor, when she saw the Titan she got furious and turned to a Titan to kill the bastard. She then ran to Wall Maria and lived there for the rest of her life until the wall was destroyed. She was left all alone to survive for the past years.