The former Ballarat Clarendon College has commenced Olympic trials at the Hancock Prospecting Women's National Training Centre in Penrith.

She is one of 19 members vying for 15 spots in the Australian women's sweep squad, which will compete in the Women's Coxless Fours, eights and pairs in Tokyo.

If selected, the Tokyo Games would mark her first Olympic appearance - something she said would be a dream come true.

Werry said the trials were the only way to ensure the best team is selected for the world's biggest sporting meet.

"I'm feeling fit, strong, focused and really prepared," she said.

The trials, which began on Friday, will go for a week and will consist of both male and female crews.

Werry said squad members would compete against each other in a series of training and race exercises, which would determine each athlete's ranking within the squad.

"You rock up every morning and you don't know what they are going to do," she said.

"So you have to be ready and resilient and prepared to be in any boat, any time.

"You don't know how many races you'll race that day so you've got to be mentally tough."

Werry was a member of the Australian women's coxless four squad which won gold at the 2019 World Rowing Championships.

She rowed alongside Lucy Stephan, who attended Ballarat Grammar.

The pair also led the Australian crew to a gold and a bronze medal at two World Rowing Cup events in the same year. Despite the recent success, Werry said no Olympic spots were guaranteed.

"I'm experienced in the women's four and that's a boat where I think I can contribute," she said.

"But the pair and the eight are both excellent boats as well, so it wouldn't really matter to me."