To rip something in your dream indicates dissatisfaction with the direction that a project or situation is going. Alternatively, the dream may be a pun on “rip off” or “to rip on someone” as in to insult or bad mouth them. Consider if these scenarios parallel your waking situation.
To see something rip in your dream suggests that you are overestimating the strength of something. In particular, to dream that your notebook is ripped means that you lack confidence in your ability to write and convey your thoughts. Alternatively, the dream may be a metaphor to signify the acronym for “R.I.P.”