What is the cause of the symptoms I am experiencing, such as hair loss, sleep paralysis, recurrent miscarriages, feeling sexually assaulted during sleep, difficulty performing acts of worship, and aversion to studying? Is this sorcery, and what is the treatment?

Based on the symptoms mentioned: miscarriage, hair loss, difficulty praying and reciting the Quran, and frequent nightmares, it appears that the questioner is suffering from possession (mass) or black magic (sihr). The treatment for this requires seeking Allah's help and relying on Him, along with patience and perseverance in self-ruqya.

The following is recommended:

1. Frequent recitation of the Holy Quran, especially Surat Al-Fatihah, Ayatul-Kursi, the three Mu'awwidhat (Surat Al-Ikhlas, Al-Falaq, and An-Nas), and Surat Al-Baqarah (daily, or once every three days, or by playing its recitation in the home). 2. Frequent remembrance of Allah, especially the utterance: "There is no god but Allah alone, without partner; to Him belongs all sovereignty and praise, and He is over all things competent," one hundred times in the morning and evening. 3. Always playing the Holy Quran in the home, especially at night and when sleeping. 4. Visiting a specialist in Islamic exorcism (Ruqya Shariah) for assistance. 5. Strict adherence to the daily and nightly supplications (adhkar), especially the adhkar of sleep and its etiquettes, while ensuring to perform ablution (wudu') before sleeping.