Fullerton is from Denville, New Jersey and a 2009 graduate of Roxbury High School. She earned her bachelor of science degree in Exercise and Sports Science and a bachelor of arts degree in Psychology from Guilford College in Greensboro, NC. Fullerton was a short-stop/third baseman for the Quaker’s softball team during her time at Guilford. Following Guilford, she went on to earn her master of science degree in Athletic Training from Bridgewater State University in Bridgewater, MA. Fullerton has done internships with Stoughton High School, Bridgewater State University football, Boston College Football, and Reggie Lewis Track and Athletic Center. Fullerton spent the following 2 years working with the Blue Devils of Lewiston High School in Lewiston, Maine where she developed and lead a six-week summer strength and conditioning program for student-athletes. She organized multiple fundraisers to help the Lewiston community build new athletic fields, collect food for homeless shelters, and bottles drives for several athletic teams.