Salaam, I have a dream frequently where I am have my exams are imminent and I have not done any revision what so ever which troubles me significantly. In this dream I also end up faling from a height into some sort of abyss and I do not land anywhere I just awake startled from my dream. Jazak Allah Khair. In need of your duas
wa `alaykum salam,
Try to do prayers zikr and meditation to gain perspective on your stress and keep it in check. Also recite 3 Quls and Ayat al Kursi before sleep.