The 34-year-old won a £100,000-a-year job with Lord Alan Sugar in 2010, but quit a year later and went on to unsuccessfully sue the businessman for constructive dismissal, claiming she was forced out of the "sham" job.
She is now considering applying for Jobseeker's Allowance and housing benefit - claiming to have just £90 in her bank - and has split from husband Ray Dewar due to the stress of the case.
She has also received abuse from strangers in the street since suing Lord Sugar, who last week failed in his bid to countersue her for £35,000 in legal fees and damages.
"I wish I had never gone on The Apprentice. I'm broke and on my knees. I just don't know how I'm going to carry on," English told the Sunday People.
"Before I went on The Apprentice I was driving Porsches and Bentleys. I would eat lobster and caviar. I used to fly business class and had chauffeurs.
"[Now] I can't work. As soon as the employer realises who I am I don't hear back. I've even applied for jobs that I'm over-qualified for but I don't hear anything."
English was earning £85,000-a-year as a trading floor manager at Japanese bank Daiwa when she applied for The Apprentice. Her boss had even offered her a £15,000 pay rise not to do the show.
Last October, she landed a £200,000-a-year consultant job with Citigroup, but decided against renewing her contract following her tribunal battle with Lord Sugar.
"I've been called all these awful things, my marriage has broken down. I'm going to have to ask friends for money. I'm just living day by day. I feel like a failure," she said.
English added that she cannot sell any of her three homes as they are "re-mortgaged up to the nines".
She is also reported to have hired agent Terry Mills of Big Talent Group at a cost of £4,000-a-month, but now faces a legal battle with him after failing to pay his fees for two months.