In 2009, she took 7th at the 2009 European Fencing Championships in women's épée in Plovdiv, Bulgaria. Mills competed at the 2010 European Fencing Championships in Leipzig, Germany, where she won the bronze medal in individual épée. She lost 15-14 in the Round of 32 at the 2011 World Fencing Championships to eventual silver medalist, Sun Yujie of China.