Published Tuesday, 29 October 2013
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The mum-of-two was speaking to This Morning's Eamonn Homes and Ruth Langsford about her memoirs, which she said took 13 months to complete.
As well as documenting her life as a mother and the longest serving panelist on Britain's Got Talent, 'No Holding Back' also details her previous marriage to TV presenter Les Dennis and her subsequent affair with actor Neil Morrissey which ended the union.
Amanda said she chose to write her autobiography at this point in her life because it would be about more than just her previous relationships.
"Literally I have been asked to write a book every year for the last six years," she explained.
"And I thought (it) would be about (nothing but) being married to Les Dennis, having an affair with Neil Morrissey and I thought "I do not want to have to dredge all that up again" it was nicely laid to rest.
"Of course now it's all come back out and even been introduced to a new audience. It's hard but you can't avoid it and it is part of my life.
"But I just thought it was trite and not a great thing to have a book about and now so much more has happened to me over the years."
Amanda explained that following the traumatic birth of her second daughter two years ago, she felt that writing an autobiography was a way for her to leave her mark on the world.
"It did make me start thinking about my own mortality and you think "what would my Mum say about me? What would my husband say about me?" no one is going to be able to say what I would say so I thought "right I am going to do it now".
"There were loads of times when I wish I had never started it, because it is really hard, it is like homework, you have to really sit down and focus and think about what you are doing.
"And I wanted to get it right and I wanted it to be a good read for years to come not just a book that creates headlines for a few weeks and then just disappears."
© UTV News