You have choices to make every day.
One of those choices is to determine what goes into your mind to help to form the person who you are.
If you let in courage, compassion, love, hope, empathy, peace, devotion, consideration and other such qualities, just guess what’s going to be coming out of you?
On the other hand, if you constantly fill your mind with hate, anger, violence, murder, rape, revenge, torture, abuse, prejudice and other such qualities, guess what’s going to be coming out of you?
You probably won’t start acting like the characters you see, but your perspective definitely will be affected by what you’ve let into you.