Success
Disclaimer: Look at me not being J.K Rowling. I am still me. Life is hard isn't it?
You're five and you tell your mummy that one day you'll be a "Roarer" and look after her and Daddy. You've watched her wince in the street when a complete stranger mentions Bellatrix Lestrange and cry when you get home. She tried to hide it but the ability basically hide anywhere is a useful thing to a curious child. You want to be cheerful all the time when you're a grown up and don't have to go to bed.
You're ten and you see Dad talking to the Aurors in the Ministry and they look so cool and you hide behind him. One guy, who looks about seventeen, calls you over and offers you a doughnut. He grins at you and asks you what you want do when you grow up. You blush and wave randomly around you. He raises his eyebrows, wishes you luck. You nod and scurry back behind your dad.
You're fifteen and you get the right marks for continuing in your quest. You do a silly dance in the Great Hall and turn your hair all the colours of the rainbow until your best friend pulls you back into your seat. You beam at her. She shakes her head, she's used to you by now.
You're seventeen and you have an interview at the ministry. You're freaking terrified. You've worked yourself up into a fit of "OhMerlintherestofmylifedependsonthis" when you walk into the room and sit down. Then, thank Merlin; the person who walks in is the guy who offered you that doughnut seven years ago. You can feel your hair turning red. Grinning at you he raises his eyebrows the way he did so long ago. "You again? You don't give up do you? I'm Matt."
You're nineteen and you are sotired of running and training and paper work that you decide you can't do it anymore. Walking to the office you run into Matt and he asks you where you think you're going. He tells you that giving up is a losers move and dares you to carry on. You can never resist a dare.
You're twenty and you've made it. You stand outside the Auror Department in your robes and beam into the camera with an arm around each of your parents. Matt snaps the photo and then demands with his "most irritating trainee". You stick your tongue at him and then kiss his cheek. You did it. You graduated. You're an Auror, you're a success.