Pussycat Dolls days my loneliest time: Nicole Scherzinger

Los Angeles: Singer Nicole Scherzinger, who led the Pussycat Dolls from 2003 to 2010, says she couldn`t enjoy her 20s.

In an interview to the Guardian newspaper, the 36-year-old talked about her "loneliest time", reports femalefirst.co.uk. "My 20s were fruitful but not enjoyable. Being in The Pussycat Dolls was probably my loneliest time because I was quite insatiable. Nothing was ever good enough and I didn`t know how to take a break. My 30s have definitely been more chillaxed," she said. "I`m recklessly ambitious. In America, ambition is a good thing - it`s hunger, it`s drive. I hate it when people use the word negatively," added the singer, who has been in an on-again, off-again relationship with British Formula One driver Louis Hamilton for six years. The former "X Factor" judge also says she has always been very emotional. She said: "My nickname at school was Crybaby. Sometimes I can cry just talking because something means so much. And when I`m really hurting I just sob - a bit like someone is dying. I`m emotionally intense."