Carol Burnett said her daughter's death in January from complications of lung cancer was painful and surrounded by regret over smoking.
"She suffered. She suffered a whole lot," Burnett said of daughter Carrie Hamilton. "And at one point I was praying for her to be released. You know, it's just too much."
In an interview with Barbara Walters on ABC's "20/20," Burnett said Hamilton, 38, apologized for smoking.
"She said, 'Mama, if I can take it back . . . ,' " Burnett recounted.
The actress also discussed her marriage to musician Brian Miller after two decades of being single, saying it makes her feel "cared for, like I'm No. 1." The pair married last year.
Asked about the fact that Miller is 23 years younger, the 69-year-old Burnett replied: "If it's good enough for the fellas, it's good enough for the girls."