Have I made mistakes? Certainly': Caitlyn Jenner admits regrets in new Diane Sawyer interview

Two years after their first interview, Caitlyn Jenner has sat down with Diane Sawyer . ABC has released the first teaser for the network's follow-up interview with Caitlyn Jenner on April 21, just three days before the release of her tell-all book The Secrets Of My Life.

'Do you ever have doubt you did the right thing?,' Diane asks in the clip.

Have I made mistakes? Certainly,' the 67-year-old former Olympian says

The voice over promises that Caitlyn will discuss regrets, love and family in the new special that shares the title of her upcoming memoir.

This comes after Caitlyn told the Kardashians they have shut her out since her transition.