Watch Carrie and Debbie discuss their relationship
Still, Debbie says she feels protective of her daughter. "I don't worry about [Carrie]. I just worry about the mental health," Debbie says. "I feel, as a mother does, that I protect her. Who will do that when I'm gone?"
Carrie assures her mom that she's okay. "I enjoy my life. I make choices. I do what I want to do," Carrie says. "I am a strong person. I'm not afraid of almost anything. And that's a lot because of your example."
Watch Carrie and Debbie sing a medley together
Look back at Carrie's life in photos
See which Hollywood treasures Debbie is putting on the auction block