Tris Prior from the Divergent series embodies the characteristics of someone categorized as self-reliant. Growing up in the most conservative group of her "Utopian" society she is expected to continue there however when she becomes of age to choose her on fraction she chooses the brave, bold and courageous one. She defies all the doubts people have of her and chooses the route no one believed she would. She realized that "envy is ignorance; that imitation is suicide" and went her own way leaving behind all that she knew in order to be her own person not defined by those that surround her. In the later movies she ultimately goes against the corrupt government and leads the people to freedom with her leadership and passion to defy the social norms, which many are afraid to go against. 

I got the eye of the tiger, a fighter
Dancing through the fire
'Cause I am the champion, and you're gonna hear me roar
Louder, louder than a lion
'Cause I am a champion, and you're gonna hear me roar!"

"There is a time in every mans education when arrives at the conviction that envy is ignorance; that imitation is suicide; that he must take himself for better, for worse, as his portion...."

This relates to the text because it describes how when one breaks free from something and accepts who they are separate from people or tangible things then they will truly be living or in the case of the song a "champion"