Uh..it depends on what the topic of the essay is. If it has any form of torment included in the topic to that should be ok..if not, then I wouldn’t use it just to be safe..but ask your teacher to make sure it’s ok. I know some teachers are protective about that.
Repetition is a rhetorical device so I believe it is that.
Make sure it is descriptive and detailed
The feature of speech which is not usually found in written essays is the non-verbal form of communication.
Non-verbal communication is the form of communication wherein the message is conveyed through gestures. non-verbal communication does not stop with the pause in verbal communication.
Some of the examples of non-verbal communication which are not found in written essays are eye contact, gesture, body movement, eye contact, space etc.