Writers have recently transformed Sunita's appearance to coincide with her affair with Karl Munroe.
Speaking to This Morning's Eamonn Holmes and Ruth Langsford, she explained: "You know how unconfident I am in real life, so it's been quite a struggle.
"Wearing the tight-fitting dresses. I am quite embarrassed and sometimes I bang my head against the Rovers bar and wonder what I'm doing."
However, she added: "I think I have a new-found confidence from it.
"She says the most outrageous things to Karl. I've particularly enjoyed moving into the Rovers as a barmaid."
The 45-year-old was last month awarded 2012's Rear of the Year prize along with John Barrowman.
She also quit Twitter last month after receiving racist abuse.