What is the ruling on a girl's emotional inclinations towards women, her desire to transition to a man, and her refusal to marry? Is she psychologically ill? What is her status in Islam, and how can she inform her parents of this?

You must get rid of negative feelings and fight the whispers that call for imitating men, replacing them with true feminine feelings and occupying yourself with what is beneficial. You should also consult a specialized doctor or a psychological counselor, as these thoughts might be a spiritual or psychological illness, or they might have an organic aspect related to hormonal imbalance. The curse of Allah is upon those who imitate men, and imitation includes both outward appearances and inner feelings. Do not succumb to delaying marriage; for marriage is a cure for this problem, along with the necessity of enhancing femininity and seeking medical help. Seek Allah's help through supplication, reciting the Quran, and morning and evening remembrances. Your cure depends on your piety towards Allah, strength of will, and taking the means for physical and psychological treatment, and consulting specialists.