For a while, it seemed almost everything Oprah Winfrey touched turned to gold -- television shows, magazines and books, among them.

So what's the one thing even she hasn't been able to polish to a shine? Her low-rated TV network, OWN. And in a new interview, she (almost) reveals she wishes she hadn't tried.

In a Monday appearance on 'CBS This Morning,' Oprah said:

The idea of creating a network was something that I wanted to do. Had I known that it was this difficult, I might have done something else ... If I knew then what I know now, I might have made different choices. If I were writing a book about it, I could call the book '101 Mistakes.'

The worst part isn't the blow to her ego or the tough lessons learned, though. She says it was having to recently lay off 30 employees, which included staffers from three departments and two high-level executives. And a few weeks ago, OWN also axed Rosie O'Donnell's fledgling talk show.

Winfrey said the network launched before it was ready and is now going back to basics, building each hour of programming carefully before moving on to the next. But don't expect her to pull the plug on OWN anytime soon.

I believe that I am here to fulfill a calling. Because I am a female who is African-American who's been so blessed in the world, there is never going to be a time to quit. I will die in the midst of doing what I love to do. And that is using my voice and using my life to try to inspire others to live the best of theirs.

Watch her segment from 'CBS This Morning' below.