Is it true that reciting Surat An-Nasr in a dream indicates the approach of one's demise, and does Ibn Sirin's interpretation in this regard affect one's psychological state?

Interpretation of dreams cannot be taken from books because their interpretation varies according to the characteristics of individuals. It would have been better for you to ask someone who has experience in dream interpretation from among the Sunnis, and to be optimistic. Death has a specified term, and there is no cure in crying. Rather, what is obligatory is to hasten to repentance and turn to Allah Almighty.