Simon will turn 24 on 25 June, midway through the tournament in Canada. She would love to be celebrating the Matildas still being alive in the tournament at that time but that will depend on them advancing from the group stage and going deep from there.
"It's my second World Cup and that's a dream come true for me," Simon said. "I guess you could say I've got a lot of experience coming into this event.
"It's really exciting to see how much we've grown from the 2011 World Cup and to look forward to our chances in this World Cup, now that we're here."
Asked if she actively sought to help mentor the younger members of the squad or only did it if the coach, Alen Stajcic, asked her to, Simon replied: "I feel it comes naturally with me. I enjoy it.
"Some people may see it as an extra responsibility, but I like being that positive influence on other players.
"I don't see it as a burden. I grew up influenced by the older players so I enjoy taking on that role, yeah.
"I think everyone's got their own individual responsibilities, but whether you're one of the younger players or one of the really experienced players I think we've developed this family culture within the Matildas. Everyone has got everyone else's best interests at heart.
"I do try to look after the younger ones coming through as part of the culture that we've got going. I think it's the older girls' duty to guide those girls who haven't had much experience at this level. We've got each other's backs and I'm just happy to be here as part of this team."
Simon said there were several young players she had particularly tried to help.
"Probably the youngest player in the squad is Larissa Crummer (19) and 'Polky' (Clare Polkinghorne) has done a great job mentoring her and supporting her," Simon said.
"But in terms of the other players, I'm really close to Caitlin Foord (20), Alanna Kennedy (20) and Sam Kerr (21). I feel I've got a good relationship with all of the girls in the team. We just really bond well together."
Simon has certainly proved herself on the biggest stage. At the 2011 World Cup she scored both goals in a 2-1 win over Norway that ensured the Matildas qualified for the quarter-finals.
She goes into this World Cup acknowledging the strength of Australia's group opponents - USA, Sweden and Nigeria - but also confident the Matildas can advance to the last 16.
"We've got a tough group, but you're never going to get what you might call an easy group at the World Cup," Simon said.
"I've played in the US and you get a feel for their style of football from playing over there. They're a very direct and athletic team, difficult to handle.
"Nigeria tends to be unpredictable, you never know what to expect from them. One day they could have the game of their lives and on another day they could be off. And Sweden is a powerhouse footballing team.
"It's not going to be easy, but we'll be focusing on what we can do to use our strengths and combat their strengths.
"Anything can happen. It's do or die every game and you have to walk away feeling like you've left everything out on the pitch.
"We're more a genuine footballing-based team, but we're very physical as well, similar to representative teams across all sports in Australia. You tend to be known as always being up for the battle.
"There is some firepower in our line-up and players who can do some amazing things on the ball, so if you combine all of that with a good, solid team performance and the hunger you need to show if you really want the result, which we've got, then we're in good shape for the World Cup."
Simon said even making the final and winning it wasn't out of reach for the Matildas - the 2014 Asian Cup runner-up.
"You have a benchmark from your previous results and we obviously got to the quarter-finals last time, so you always want to aim for something better," she said.
"You have the sight of the trophy in your mind for you to be able to dream of it and be able to achieve it, so I'd say that every team aspires to be in that final game.
"That's exactly where our dreams and our goals are going to be."
