I have a ghost diary

If you received a diary that could predict the future
How would you use it?
This is the handwriting on the first note.
Do not open this diary.
Unless you're mentally prepared to die suddenly.
This is the handwriting on the second note.
The black diary with two notes pasted on it was in Chu Jiang's hands. After much deliberation, he finally slowly opened the cover.
......
A global paranormal resurgence has brought strange and mysterious things to life everywhere. This is the story of a dead man, which begins when he obtains a strange diary.
P.S.: The author has already completed several novels totaling over a million words on this site, including "A Sword Cuts Through the Path of Life and Death," so his integrity is guaranteed.