Sonia Rodriguez retires this week after 32 years with the National Ballet of Canada

When Sonia Rodriguez started taking ballet lessons at age 12, little did she know she would grow up to become the longest serving dancer for the National Ballet of Canada.

Most ballerinas retire somewhere between 35 and 40 due to the wear and tear of age or a career-ending injury. Rodriguez is leaving at age 49 after 32 years on the stage and after more than two decades as the company's principal dancer.

"I do love the challenge," said Rodriguez. "I feel like I'm going to have to keep moving, honestly, because I think if I don't, I won't be walking very well."

She'll reprise her 2017 role as tragic heroine Blanche DuBois from A Streetcar Named Desire for her last performances on Wednesday, Friday and Saturday.

Rodriguez joined the National Ballet in 1990 and spent decades starring in classics such as Swan Lake, Romeo and Juliet, The Sleeping Beauty, Giselle, Manon, The Firebird and Princess Vasilisa and Marguerite and Armand.

WATCH | Rodriguez reflects on her 32-year career with the National Ballet of Canada:

The Toronto native recalls falling in love with ballet after initially dreading the "constricting" lessons she signed onto as a child. Although she's retiring after doing everything she's sought to do in her career, she says she's not hanging up her shoes entirely. She says she'll dance in smaller projects, or even just for herself.

"It's given me everything," said Rodriguez. "No matter what was going on in my life, that was the one thing I could rely on — to be there and know that I was in control, and it was me and it was my time."

Rodriguez comes from a generation of ballerinas who took on lead roles well into their 40s.

She's retiring after following in the footsteps of renowned National Ballet principal dancers Greta Hodgkinson, who performed for three decades, and Karen Kain, whose career lasted 28 years.

Hodgkinson is an artist-in-residence, teaching and coaching the company's next generation of dancers, while Kain recently stepped down as artistic director after years of putting Canadian ballet talent on the international map.

As the company's longest-serving ballerina, colleagues are already missing Rodriguez's presence in the studio.

"She's there before everyone else, and it's consistent and it's every day," said Rex Harrington, a coach and artist-in-residence who has known Rodriguez throughout her entire career and is helping direct her final performance.

"That's what you need to do in order to have that career," he said. "It's a great example that she sets for the younger dancers by showing the dedication and what it takes to maintain and be at that level."