Elissa first went on slot machines in a pub when she was nine but when she discovered online gambling, her addiction escalated.
She said, during the height of her addiction, the thought of getting free spins in a promotion may have been enough to see her bet her entire monthly wage.
"All my self-worth had gone," she said.
"It had just stripped me of a personality. I just felt like such a failure."
As she began to recover she started to "feel hatred" the way companies promote bets.