When I was in my early 20s, I landed what everyone - including me - thought was a dream job: prestigious organization, upmarket central London location, and a great salary. Yet I hated every minute of it. I didn't connect with the mission of the organization or my colleagues; their values, hopes, aspirations, and ambitions were all absolutely alien to me. During the year I worked there I felt just about as comfortable as you do turning up to an event wearing the wrong clothes. Because I was so unhappy, I was unproductive, too, so I wasn't building my career or contributing to the business either.