Halleli trained at the Sandcial School of Dance and completed her higher education at the Nissan Nativ Acting Studio in Tel Aviv. She began studying Pilates at the Simone Markman College and then continued with teacher training at the Liat Gindi Reformer Studios. In 2018, Halleli qualified as a reformer instructor in the UK after completing the Ten Education Dynamic Teacher Training Course at their Notting Hill Campus. Currently, she is undergoing training in the Stott method to become a Stott qualified instructor, specializing in equipment.

Halleli is also a trained Yoga teacher, having completed the YogaHaven Certified Teacher Training Course.

Since becoming a Professional Instructor, she has successfully mentored and inspired groups and individuals of all ages to achieve and surpass their fitness goals. Halleli's experienced approach to identifying causes and creating motivational workout plans has built her an exceptional reputation among her valued clientele.

"In 2010, I embarked on a Vipassanā meditation course which has helped me tremendously with my approach towards teaching."

Places of study and qualifications:
- Simone Markman College: Classical Pilates Mat Instructor, Anatomical Physiology training
- Liat Gindi Reformer Studio: Pilates Reformer Instructor Training Course
- Ten Education Advanced Dynamic Teacher Training Reformer Course
- Yogahaven Certified Teacher Training
- Stott Trained