"I gotta carry on her legacy," she said during the "Oprah's Next Chapter" interview with Winfrey. "We're gonna do the singing thing. We're gonna do some acting, some dancing."
"It's a lot of pressure," Houston's daughter with Bobby Brown said. "But (my mom) prepared me for it. She was preparing me for this. She was preparing me for what was to come."
Also read: Whitney Houston's Death: Why the Media Sidestepped the Lurid Details
Brown, who still lives in the home she shared with her late mom in Atlanta, also told Winfrey she's "doing as good as I possibly can" and that she still feels Houston's presence.
"I feel her pass through me all the time. I wake up at night," said Brown, who turned 19 less than a month after her mom died. "She would say at 5 a.m. the saints start praying. I wake up now and look at the clock and it's 5 o'clock. I start praying."
Brown said her mom even continues to joke with her.
"Lights turn on and off (in the house) and I'm like, 'Mom, what are you doing?'" Brown said. "I can still laugh with her and still talk to her."
Watch Winfrey's interview with Brown: