Kylie watched her older sister compete and she wanted to be just like her. Her parents enrolled her into gymnastics when she was three years old. Kylie competed in Jersey Optional Gymnastics Association (JOGA) where she competed for five seasons, between 2015-2019. Following her 2019 season, she moved to Head Over Heels Gymnastics and switched to USAG program. Kylie's USAG career took off in 2021 as a level 9 gymnast! She placed third in the all-around with a 37.350 and first on vault and floor exercise at the Region 7 Championships. She qualified to the Level 9 Eastern Nationals in College Park, GA where she placed sixth on floor exercise with a 9.600.

As a first-year level 10 gymnast in 2022, Kylie posted a season-high score of 36.600 at the State Championships. She qualified to the Region 7 Championships where she scored a 9.225 on vault and 9.375 on floor exercise.

When Kylie isn't busy training 20 hours each week in the gym, she enjoys rollerblading. She is the daughter to Christine and Jack Sitty and she has two sisters and a dog. Currently, Kylie is an honor student at Saint John Vianney High School and she will graduate in 2023. She is a member of her high school gymnastics team and National Honor Society.