She wanted her essay to focus on the global impact our choices make and to show that a person's age or position in society does not limit their choices.
"Everyone has influence, it's about what I can do and realising that everyone has the power to make a change.
"It's so interesting that a lot of problems we have, the solutions we have, are about people making the right choices."
The group will arrive in Washington DC on January 18 and begin their trip by visiting the National Mall and Smithsonian museums.
Their visits to numerous universities will give them the opportunity to be part of debates and talk amongst United Nations delegates from around the world.
"It's going to be incredible being able to connect with lots of different people, really explore my passion and see how the United Nations works and international policies."
"When you're at Yale and Harvard and you're discussing things like militarisation ... or talking about war criminals, a lot of this is choice and decision-focused so translating a bit of that aspect was important to me."
Perkins who is co-chairwoman of the Whanganui Youth Council said the trip would be a once-in-a-lifetime opportunity and she is excited to experience the American lifestyle and culture.
• Perkins now has to raise funds for her trip and has started a Givealittle page:
https://givealittle.co.nz/cause/help-me-get-to-the-harvard-and-yale-model-un