Leaving on her terms
De Vanna hopes to play on in Europe and is not committed to her side, reigning W-League premiers, Melbourne City.
"I'm at that age where anything could happen. I sort of have an idea what I want to do but I'll go on how I feel and how the body pulls up and we'll just go from there."
The Matilda wants to emulate Socceroos great Tim Cahill, still playing at 36.
"Most of the key to his success is looking after his body and playing in leagues where it's going to suit him and is not so demanding and that's something I'm doing at the moment," she said.
"I want to leave knowing that it was on my terms and not because I wasn't good enough.
"(Some players) hang on and hang on and then all the credibility that they've achieved in the last 15 years goes out the window a little bit because people remember what they can do and they can't do it on the field.
"I don't want that. I want to leave with people going `wow, she can still play on the next couple of years if she wanted to'."
Fresh is best
That's partly why de Vanna will stay in Australia prior to Rio in the belief it will help keep her fresh for Rio and prolong her career.
"It's a catch-22: stay here and you're not going to have the income that you would overseas but be in a good head space and your body's ready to play in the biggest event in the world," De Vanna said.
"You've got to take the good with the bad and for me, personally, winning a medal in Rio is more important than any money."