O'Sullivan went to India and in 1994 trained to be a yoga teacher. She continued to teach and on her travels has taught yoga all over the world. She continued with her yoga education, taking teacher training with the prestigious Prana Yoga College. She completed her two-year teacher training with the life centre, earning a distinction. O'Sullivan still teaches all over the world, but is now based in Bloomsbury, teaching many classes in various locations, gyms, dedicated yoga centres, corporate clients and many private clients. She is also a certified Level 2 Reiki Teacher as well as a massage therapist, specialising in Swedish and Deep Tissue massage.