Amy Childs 'panicking about Celebrity Big Brother'

Amy Childs is worried she's made a huge mistake by quitting 'The Only Way Is Essex'.

The ditzy beautician has left the ITV2 reality show so she could appear in 'Celebrity Big Brother' but admits she's not that confident with her choice, especially because 'TOWIE' is returning for a third series next month.

She said: "I've been feeling quite panicky, wondering if I've done the right thing. It's going to be really hard when 'TOWIE' is back on and I'm not part of it.

"I'm worried everyone's thinking, 'Oh, she thinks she's too big for the show,' but I don't think that at all."

While she is concerned about her decision, the 21-year-old star - who is set to enter the 'Celebrity Big Brother' house on Thursday - believes fellow star Mark Wright will also quit the show.

She added to new! magazine: "Mark said he thinks what I'm doing is really good. I've got a feeling he'll be next to leave."

Meanwhile, Amy's co-stars Sam and Billie Faiers have been out celebrating the release of their new fitness DVD.

The Essex sisters were two of many 'celebs' spotted at Smirnoff Presents Sensation. The all white event, which was held at the O2 Arena was sold out and VIPs had to be escorted from the entrance to a secluded area upstairs.

Also in attendance at the O2 Arena were Imogen Thomas and socialite Julie Onwukegu. DJ's on the night included Fedde Le Grand, Laidback Luke and Martin Solveig.