Why little Olivia has a Super Mum Being a mum can be the toughest job but also the most rewarding. That’s according to the latest candidate for The Daily Telegraph Mum of the Year competition. Lifestyle by Christopher Harris Premium Content Subscriber only Being a mum can be the toughest job in the world but also the most rewarding. That's according to the latest candidate nominated for The Daily Telegraph's inaugural Mum of the Year competition. Five Dock mum Vanessa McDonald Costa was nominated by her seven-year-old special needs daughter Olivia. "I have the best Mum, she is a super Mum … She gave up her job to look after me as I have special needs," Olivia wrote when she nominated her.