Fergie: I was so stupid

London - Sarah Ferguson has admitted that her ex-father-in-law Prince Philip was correct to call her "idiotic".

Ferguson - who was previously married to Britain's Prince Andrew - was shunned by the royal family after it was revealed she tried to sell access to her former spouse, but she admits they had every reason to be disappointed in her.

She said: "I can't get over the stupidity of me. The first person who said it was my father-in-law [Prince Philip].

"He said, 'For such a smart woman, why does she behave in such an idiotic way?'

"I've humiliated myself so often, so publicly, I can't forgive myself."

Money troubles

However, Ferguson tried to redeem herself by revealing she has "little" understanding of money as she never had to worry about it while married to Prince Andrew.

She explained on her new reality TV show Finding Sarah: "I went to Buckingham Palace and lived on the second floor and suddenly you have to remember to tell someone if you're leaving, then you have to order your food in time because the kitchen is two miles away, you have to not open your curtains, you have to have so many restrictions. I got to a point where I didn't know what to do.

"When we got divorced I just had to get on with it but I didn't understand things about money, probably because I never had to.

"I don't really understand finances at all so I was living for my staff and keeping going to do lots of speeches, trying to keep the head above the water."