You ARE mentally ill-equipped to be a pilot if you scream in terror and sounded panicked on a beautiful VFR day with a perfectly fine aircraft. Also giving up flying altogether means that she was ill-equipped mentally to proceed. That’s fine, many people are not mentally equipped to be pilots.
Honestly I am very glad she discovered this on a nice VFR day with a perfectly good aircraft and she landed OK. Imagine what would happen with her VFR into IMC with a balky engine!