She made her first major representative team, the Queensland U19s State of Origin side, and will make her NRLW starting debut against North Queensland on Sunday.
Ginn was a wide-eyed 18-year-old rugby sevens recruit when Eels coach Steve Georgallis invited her into his top-24 NRLW squad this year.
Now after five weeks of coming off the bench, she gains her first start in the centres in round six following a leg injury to Rory Owen.
"Rugby League has always been an itch I've wanted to scratch and Steve has given me an awesome opportunity so I couldn't say no to Parramatta," Ginn told AAP.
But on Sunday against the Cowboys the Brisbane-born Ginn, who turned 19 on July 26, has been asked to step up again.
She is predominantly a fullback but feels she can handle the centre role.
"Coming from sevens I think I have some of those outside back qualities you need," she said.
"I've been used as a utility these past few weeks so I'm comfortable going into the centres."
The Eels' third win of the season, a thrilling 12-10 triumph over St George Illawarra at Magic Round in Newcastle, propelled them into fifth on the ladder and keeps them in the hunt for finals, starting on September 20.
Ginn was part of that success, scoring her maiden NRLW try with an angled run to the left corner, slicing through Dragons defenders.
"That was so exciting because I've been coming off the bench, grinding it out, doing what I can," she said.
"Then we get to the point where I can score my first career try and that's something I'll never forget.
"I feel like I've come into an awesome team that has real experience and real role models.
"Abbi Church is one of mine as she plays fullback and is one of the best at it. She played Origin, is Dally M fullback of the year, and it's incredible to watch and learn off her."
Parramatta will need both Church and Ginn to be at the top of their games at CommBank Stadium to subdue the Cowboys, who are in fourth spot with the same 3-2 win-loss record.
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