The 21-year-old student lives a hectic life trying to balance her studies and netball ambitions.
A week after Otago returns from the national championship finals in October, Shearer has a series of examinations. She already has a science degree in physiology and biochemistry and is in her second year of a medical degree. It is a demanding schedule which does not leave time for sitting around on the couch.
Not surprisingly, she was studying when the Otago Daily Times called for an interview this week.
"I guess the saying is, you give a busy person something to do and they'll get it done," she said.
"I've been busy all my life, so I guess it comes naturally."
Shearer made the Otago team in 2009 but missed out the following year. Last season, she was part of the championship-winning Otago under-21 team and was also in the Otago senior team which finished second.
But with Jodi Brown and Te Paea Selby-Rickit entrusted with the shooting, Shearer had to bide her time on the sidelines.
Earlier this month, Brown was named in the Silver Ferns after a five-year break and is unavailable for provincial duty.
That has provided Shearer and fellow goal attack Olivia Bates with a golden opportunity.
"I'm pretty excited to get out on court and show them what I can do but it is sad Jodi won't be able to play."
Shearer is a supremely fit athlete, according to Otago coach Deb Tasi-Cordtz, and is also very ambitious.
She played age-group tennis for New Zealand but gave up a promising future in the sport to focus on netball.
It is her dream to make the Silver Ferns and a starting spot in the Otago side would be a good start.
The province shapes as one of the favourites this season.
The loss of Brown is a blow but the side has a nice balance.
Shannon Francois leads a talented midcourt which includes Gina Crampton, and former Australian international Demelza McLoud bolsters a strong defensive unit which includes Storm Purvis.
"We came second last year and are looking to take it out this year. I reckon we can do it," Shearer said.
Otago opens its campaign against Waikato at the Edgar Centre tomorrow.
Shearer also plays wing attack but feels more comfortable in the shooting circle. Coping with the pressure of that big shot is something she has never quite got used to but, equally, she is attracted to those high-pressure situations.
"It is quite daunting, especially when there are heaps of people watching. But you just get so focused that you don't even think about it. It's mechanical, almost.
"Before the game, I'm always really nervous. But during the game, I just kind of calm down.
"I learned how to handle the pressure playing tennis. It is daunting when it is just you but in netball, you're part of a team."
Shearer plays for the Southern club, which went through the season unbeaten. That was a good feeling and something Shearer would like to continue throughout Otago's campaign.
