De Vanna, with 33 goals in 97 internationals, will be a key player for the Matildas in next month's FIFA Women's World Cup in Canada.
The World Game asked De Vanna about the 'art' of goalscoring and what she goes through before a game to put herself in the best position - mentally and physically - to do what she does best.
"I think when I prepare for a World Cup it's a different mentality to when I play for a club team," De Vanna said.
"It's still the same feeling, but the focus is a little bit different because I start to think of the bigger picture at a World Cup.
"So if I was playing the US tomorrow I would probably be in my room now listening to music. I wouldn't talk to anybody, I'd make sure I knew what I was going to be eating. I don't want to change routines.
"I'd be thinking about what boots I'm going to wear - I'm very pedantic when it comes to things like that.
"I try to psyche myself up the night before and think about scoring goals, how well I'm going to play. Then, the next day I'm obviously a bit more stressed and I feel like I've played three games before I actually play the game.
"In the change-room I keep to myself. I try to listen to music that gets me pumped up and I visualise walking out on to the field. I try to visualise what the opponent is thinking of me, like in boxing, and I look them in the eye and see who's the first one to look away.
"I pretty much know by then whether I'm going to have a good game or not, because of the gut feeling I get."
De Vanna said her gut feeling is usually right. So what happens if she thinks she's not going to have a good game? What goes through her mind then?
"I just try to go back to basics," she said. "As long as I work hard and chase players I'll contribute in some way."
De Vanna said she had 'sometimes' been able to prove herself wrong.
"Most of the time if I have a good feeling and I know I'm going to come out in a blaze of glory I'll go out there and destroy teams," she said.
"But if I go out not feeling quite like that but still feeling good and confident, we're going to win games but I might be a bit quiet."
De Vanna said it was just a fact of life that she wasn't going to have a great game every time she played and that it was the same for every player - except, perhaps, Lionel Messi and Cristiano Ronaldo.
"When you're not having a great game, then you play simple and try to make an impact that way," she said.
The Matildas are in a tough group at the World Cup, alongside USA, Sweden and Nigeria, but De Vanna made the point that the presence of the Matildas contributed to it being a tough group.
So the group stage was a challenge to embrace, rather than fear.
"It's a tough group, playing the number two in the world and number two in Europe and number one in Africa," De Vanna said.
"But, to be honest, if we didn't have that group I don't know how mentally prepared the girls would be, because they now know that they're good, but it's not an easy road to get past the group stage.
"So they have to really see the bigger picture and be more focused at training and be prepared for who their opponents are.
"I think 'Staj' (Matildas coach Alen Stajcic) has come up with every bit of tactical information you can possibly think of to help us prepare for these games.
"It's now up to us to go out and do it. There are only two ways the players can go, either believe in themselves or fear their opponents, so it's their choice in the end."
Asked for her take on the other three teams in the Matildas' group, De Vanna said that as good as each was she believed the Matildas were in with a great show of getting the results they needed to advance.
"All teams are beatable," she said. "The thing about the US is they're mentally tougher than any team in the world. They can be 3-0 down with 10 minutes to go and they'll figure out a way to score those three goals and that's what makes them so good.
"Nigeria, I've never played against them, but I'm assuming they're a little bit unorganised but quick and strong, and Sweden are great in that football team sense.
"I think all three teams are beatable. If I had to pick a team I feared the most in the whole tournament it would probably be the Germans, but I think that, on a good day, when we're ready to play, we can beat any team."
