Andrea McQuistan, of Stone Lane, said she wanted to take part in the five-minute film to show other sufferers that there is light at the end of the tunnel.
“I want to just stand up and say these doctors are amazing and I have come through the other side,” she said.
Andrea said she went through an ‘extremely worrying time’ after she found a lump in her breast.
Following a biopsy which confirmed breast cancer, the 49-year-old had a mastectomy.
The video was created by Worthing student Mia Walton, 18, who wanted to feature Andrea in her media project.
Whilst still on chemotherapy, Andrea is working as a Macmillan volunteer and has launched a Facebook page ‘It’s All About Meee’ for helpful tips and advice.