Growing up in a military family, Kelley learned weapon skills and safety from her father at a very young age. After college, she attended a prestigious academy, The Martinez Academy of Arms in New York, for historical fencing training. She continues to train in their Los Angeles facility twice a week for competitive fencing tournaments all over the world. Kelley is the VP of The Association for Historical Fencing, a non-profit that educates the public on all aspects of historical swords and fencing.

Currently, Kelley trains weekly in formal firearm safety and skills with retired Marine Sergeant, Tien Nguyen. She is NRA certified in both pistol and rifle safety. With renowned trainers Anthony and Mary DeLongis, she trains 3x a week on various types of stage and screen combat skills, Shinkendo, whip, and horseback riding at their ranch, Rancho Indalo.

Kelley has studied fight training and choreography with Art Camacho, Jacov Bresler, and Olivier Gruner for various films. Her training is varied and always ongoing.