There were a few different jobs I wanted to do growing up.
Veterinarian, biologist, signwriter, artist and journalist. Then a bit later I wanted to be a scriptwriter.
I didn't become a vet, which is for the best because I'm terribly allergic to a lot of animals now. However, I have kept a lot of different animals as pets, and currently have a pet rabbit.
I didn't study biology after high school. I am a reiki practitioner.
I didn't become a signwriter, but I learned calligraphy as a teenager, and still have a decent grasp of it.
I have become an artist. I got into drawing in my early 20s, but then didn't do much with it for years until I took a web development course a few years ago. I learned to use Photoshop properly, and now I have a lot of images completed, a book I've illustrated (and two more in the works), and a Redbubble store with some of my artwork on it. I've also made web themes for Elliquiy, RPOL (unofficial ones) and Dark and Moody Forums (some had artwork, others were pure CSS). I have a Deviantart gallery but I haven't updated it from a couple of years ago. I also illustrated my web site for my pen name, and have done the same with a few other web sites before.
I did get a degree in journalism, but haven't worked in it a single day in my life. I did start writing my own books, and the degree helped improve my writing, which I've applied on here and other forums where I've written, but it hasn't led to a journalism career. I honestly don't feel like it's the path for me anymore, despite my family thinking it's what I should do. I would rather write science fiction/fantasy.
As for scriptwriting, I have written one or two. I submitted one when I was about 18 to a tv studio, but it got returned to me because they didn't accept unsolicited scripts. I edited a friend's, who put on a theatre show out in Texas. I haven't really done any script writing apart from that since high school, but I haven't really had much connection with the theatre/entertainment scene, so I haven't got into it that much.