Drew Barrymore wishes she could change "everything" about her past

Asked what she would change about the past, she said: "Probably everything but if you're happy with your life today, you have to be appreciative of every single moment that led you to get here."

The 39-year-old actress - who has daughters Olive, three, and Frankie, 16 months, with husband Will Kopelman - feels "lucky" she had her "experimental phase" in the 90s, rather than today as the world is "much worse" now.

She said: "Most people go through an experimental phase in their lives but it isn't public.

"I had to learn a lot of lessons on my own. But I was never a bad person, I never f***ed anyone over.

"I feel very lucky that it happened then. This is a much worse world to go through anything now. I'm like a quiet, boring church mouse now."

The 'Miss You Already' actress - who shot to fame appearing in 'E.T.' when she was just six years old - admits people approach her with a sense of familiarity because she has grown up in the public eye.

She told Red magazine: "I'm Norm from 'Cheers'. I walk into a place and everyone says, 'Hi Norm'. It's just what my life is."