In 'My Mind and Me,' the 30-year-old actor discusses her health difficulties.
Selena, who has anxiety and depression, said in the documentary: "Selena, don't change. Nobody cares about you. It's about accepting who I am. I love being alive."
Selena shot to prominence as a child on 'Barney and Friends'
Selena doesn't want to be "very famous," but she wants to convey positivity.
She revealed in the trailer: "My whole life, since I was a kid, I've worked. I don't want to be famous, but since I'm here, I must do good."
Selena has self-doubts despite her achievements.
When asked what stops her, 'Lose You to Love Me' singer said: "Insufficient. I felt this as a child."
Selena said she felt oversexualized during an album cover shoot earlier this year.