Aviator
the ghost of pimping past
PlusUltra
If that is the case, then please elaborate about this psychological condition in Maeve's Personality or Backstory, because I'm afraid I'm not familiar with it. However, if your character truly has no fears, then I don't know how her fear simulations would work, or how she would grow as a Dauntless initiate. Perhaps try thinking of fear in a more abstract light; are there any versions of the future that she dreads or would find extremely upsetting? What makes your character lose hope? At what point does she stop fighting because the odds are too overwhelming? Is there anyone close to her whose safety she prioritizes above her own?