I'm writing about a character who is unique and prefers not to settle when it comes to a certain perspective. She chooses another way to see things. Is there any word to describe this?
Iconoclast is the first word that comes to mind. If the person you're talking about refuses to adhere to conventional beliefs and ideas, she can be called an iconoclast. Her views are iconoclastic.
She can be called a maverick if she is an independent thinker.
an unorthodox or independent-minded person.
If she is oddly different from the others, in terms of her perspective, you can call her eccentric.(Note that this word has a positive connotation)
(of a person or their behaviour) unconventional and slightly strange.
Source: Oxford Dictionaries
Contrarian is the word which describes this type of behavior.
con·trar·i·an - kənˈtre(ə)rēən,kän-/
1. a person who opposes or rejects popular opinion
1. opposing or rejecting popular opinion; going against current practice. "the comment came more from a contrarian disposition than moral conviction"