Question

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Answer 1

Its called First Person !!!!!
First Person is when the writer uses I, we,
Second Person is you, yours
Third Person is when the writer uses he, she 
When the narrator uses words like I, you can tell its first person because the narrator records what is happening in the narrator's point of view.
For ex: I thought about what Liana said. The words echoed in my minds over and over making me feel guilty for what I did.
In the example, you can see the narrator's thoughts and feelings.

Answer 2

A journal should be the correct answer.