Speaking at Manchester Pride where she received the Your Manchester Icon Award on stage in front of thousands, she told them how she first joined the soap – only to be snubbed for a decade after her appearance.
“Well, you know showbusiness can be crap but it can be marvellous if you stick at it,” she said.
“I’ve been in rep, I’d done everything you were meant to do, I was always promised parts and I’d never got them and I’d done one thing or another, and then I got one episode in the Street.
“And I thought, ‘I’m here’. I never heard from them in ten years! It’s true.
“I did that one episode and I was convinced ‘I’m in!’. But no, nothing. So I go back in rep, etc etc etc.
“And then ten years later I go back. And it’s just been a wonderful, wonderful journey.”
Barbara is second only to Ken Barlow actor Bill Roache, 91, in the age stakes on the ITV soap.
The star is thought to command around £200,000 as one of the biggest names on the box
Last year Barbara was given her own documentary by ITV bosses to celebrate her legacy.
Called Barbara Knox At 90, it saw the actress look back on her career, including speaking about her very first day on Corrie.