Another 12 year old starter here... Although with the RPG Maker 2000.
I didn't get around to Gamestudio until A5 Standard was put on a disc of the Bravo Screenfun (German, subpar gaming magazine that is in all likelihood not produced anymore) and my A5 adventures were rather lacklustre at best. But I got A7 Commercial one wonderful birthday and got hooked on Lite-C...

[Insert some failed games here]

Anyone remember the Gulli board? German "underground" warez board that eventually did a 180 and got rid of all the illegal content and tried to be a community thing (kinda like this forum got rid of Gamestudio and the only thing left is the community). Well, I grew up with the Gulli board, my first contact was when I was sitting on my Dads lap and god knows how he managed to afford downloading warez with dial up. But hey, 10 years after the creation of the Gulli board they ran a contest: Do something creative around the theme of the Gulli site and win one of 10 iPhones. And I made a Gamestudio game. Won the 10th iPhone with it, AND the grand prize of a trip to Austria to their headquaters.

And that marks my departure from Gamestudio. These days my day job is being an iOS developer for a startup based in 'Murica. At night I tinker around creating kernels and game engines, sometimes I even sleep. Gamestudio was a great stepping stone, Lite-C in particular. 8/10, would probably do again.