She began with rhythmic gymnastics in 1977 at age 9, after a primary school friend, named Mira, did the same.

At the time Milena was doing folk dancing but, she became enchanted with rhythmic gymnastics after watching one of her friend's training sessions.

In 1981, she took the all-around gold at the Balkan championships and tied Bulgarian Anelia Ralenkova for silver on clubs.

In 2002, she started her own Rhythmic Gymnastics Club, Ritam, which she is now the head coach for around 400 girls aged 4 to 20.

Since 2009 she is National RG Team Head Coach, President of Technical Committee for Rhythmic Gymnastic and board member of Gymnastics Federation of Serbia Since 2014 she is member of Sport Commission in Olympic Committee of Serbia.