Our families come with us to the airport to see us off. Lots of tears. My twin brother, who is seven minutes older than me, is very upset. We have been through school and university together and it breaks my heart to leave him, not to mention my mum and dad and my new nephew and my grandma … but I keep thinking about what my mum said about not worrying about ‘what ifs’. I walk through the airports in floods of tears and stand in the queue crying – very British. I cry for about half of the flight, in between sleeping and eating. Finally, we arrive – and it’s colder in Melbourne than it was in Edinburgh! I’m freezing. What good are my bikinis now?