Feeling the strain? X Factor's Sophie Habibis catches up on some sleep after another gruelling rehearsal

By Sarah Bull

Last updated at 8:30 AM on 20th October 2011

She complained on The X Factor last week that she isn't as well known as the rest of her female competitors.

But it seems Sophie Habibis' quest to make herself more famous is leaving the 19-year-old London barmaid exhausted.

Sophie, who said she is determined to find fame through her voice rather than her antics off stage, was spotted catching up on some sleep in the garden of The X Factor house today after yet another gruelling rehearsal ahead of this weekend's live shows.

Feeling the strain? Sophie Habibis looked exhausted as she arrived back at the X Factor house in Hertfordshire this afternoon after another gruelling rehearsal

Catching up on some Zzzzs: Sophie had a quick power nap in the garden after a tough day of practising

Wearing a flowered vest top, pink jacket and grey jogging bottoms, Sophie looked exhausted as she sat down outside, clutching her iPod and a notebook ready to make notes on what she needs to do to get herself stage-ready for this weekend.

Sophie has received mixed reviews from the judges after her performances, and was told by judge Gary Barlow on Sunday night she was missing a spark.

So the pretty brunette teenager is clearly pushing herself as hard as she can to make sure she pulls it out of the bag during this weekend's live shows, reported to have a Rock theme.

That's better: Earlier in the day, Sophie had appeared in good spirits, as had Sami Brookes, who waved at the cameras

Talking about being part of the X Factor last weekend, Sophie said: 'It's amazing. What can I say, thousands of people would want to be where I am and I’m lucky enough to be here and sharing it with some really, really nice people, so I’m blessed right now.'

Referring to her performance of The Calling's Wherever You May Go, Sophie said: 'I was nervous but I enjoyed it a lot.

'I’m just going to be myself and if people don’t think I have a spark they can think that, but hopefully they keep me in.'