The TV presenter - who fronts a string of shows including 'Strictly Come Dancing', 'The Great British Sewing Bee' and 'Film 2013' - is pessimistic about her hosting abilities but knows if she was to be axed, she would feel content with being a mother to her three children Jake, Matilda and Arthur - who she has with husband Kris Thykier.
She said: "I can't believe they're still letting me do it. I assume I'll get fired from every job I have. I've always thought one day someone will turn around and say, 'Time's up.' And when they do that, I think I'm ready for it.
"My main job is being a mum. The rest is just stuff I do to buy shoes."
The 41-year-old star admits she can't see her own appeal as a presenter, and jokes she is only hired because she's "cheap".
She added to Stylist magazine: "Oh, god. I'm not [likeable]. I don't have any appeal. I'm really cheap and quite friendly. TV presenting is genuinely moronic - you just need the ability to read out loud. So I do that."
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