Drew Barrymore knew her marriage to Will Kopelman was over long before they decided to get a divorce.

She said: "I had a really hard time a couple of months ago and kind of knew life was heading in a new direction."

But the blonde beauty has managed to pull herself together and get on with life with the help of a mystery confidant.

She added: "I called someone that I really trust, respect, and believe in, because he has always been the conductor of grace. I said, 'What's your advice?'

"And he said, 'You put one foot in front of the other.' I hung up the phone and I thought, 'That is why I call this person.' It's not only succinct, but it's almost physically productive and life-choice productive.

"It's just great advice. It's a kind of way in which to live, and I want to be like him. I want to be like that."

And, although she's still trying to come to terms with her split, Drew is determined to put on a brave face for the sake of their daughters Olive, three, and 23-month-old Frankie.

Speaking to PopSugar, she explained: "The only thing I care about, my life's mission and the only thing that matters as of now is that my daughters know what our lives were like, how we lived, and how much I love them. For them to know that they were not just loved, but ridiculously, utterly, life-alteringly loved. That's the only reason I'm here now!"

The 'Whip It!' actress and Will married in June 2012 but the actress previously admitted it wasn't a case of "love at first sight" when she got together with the 38-year-old art consultant.

Drew previously wed bartender Jeremy Thomas in 1994 but their marriage last less than two months and her union with 'Charlie's Angels' co-star Tom Green in 2001 was over within five months.