Are you writing the tortured thoughts of a killer or the aspirations of a teen girl? No? Perhaps a complex magic system through the smudged spyglass of an exploring mage? Either way, the story you write will have a POV (point of view).
The first two possibilities are examples of first-person. The viewpoint-character is the center of focus. The pronoun "I" is used extensively, along with "mine", "my", etc. Young adult novels tend to be first-person, as the POV allows for compelling use of voice and feels less dry than third-person.
Third-person is the other main POV. It can be further broken down into the categories of omniscient and limited (along with cinematic and narrative for certain sources). Third-person is used widely in adult speculative fiction.
The "middle-ground" exists, of course, that is, second-person, however, it is incredibly rare in fiction. Second-person is used in persuasive essays and little else, save some creative horror. Its pronoun is "you".
Every story has a POV. Which is your favorite?