Well, these seasoned BBC hacks can help you out. BBC journalist and former Newsround presenter Ayshah Tull thinks the three keys are “passion, perseverance and work experience”. She breaks it ...

Video caption, Ayshah's been finding out more about Mary Seacole. Mary Seacole helped look after lots of Jamaican people affected by the cholera outbreak in 1850. Cholera is a disease caused by ...