I've always taken a lot of influence from the media when considering different careers. When I was younger, I had an 'unrealistic' aspiration to be a secret agent, like that of James Bond, but that dream career slowly faded. I considered becoming an environmental engineer for a few years but realised I didn't have the passion for it. I returned back to that base idea of working in a classified and high intelligence sector, and since haven't been more motivated to obtain my goals.
So, I guess I never actually thought about the job I want to pursue. I always had an "wouldn't be awesome if I could do that" approach, until I realised I could do that if i set my mind to it.
To put it into context, this is all within my eighteen years of life.