Bruce Jenner Talks About Family in New Diane Sawyer Exclusive Promo

— -- Bruce Jenner tells ABC's Diane Sawyer that family members are "the only ones I'm concerned with" in a new promotional clip of the exclusive interview.

"I can't let myself hurt them," Jenner says in the new promo that will begin airing on the ABC Television Network tonight.

Jenner has six biological children -- Burt, Cassandra, Brandon, Brody, Kendall and Kylie -- and four step-children -- Kourtney, Kim, Khloe and Rob Kardashian.

Jenner, a record-shattering, gold medal Olympian and reality television star, talks with Sawyer about the journey through the years, and says in the promo, "It made me who I am."

Jenner sat down with Sawyer for a far-ranging interview that will air on Friday, April 24 during a special two-hour edition of “20/20.”

The special, “Bruce Jenner – The Interview,” airs on ABC at 9 p.m. ET.

“My whole life has been getting me ready for this,” Jenner said.