OT QUESTION: What was the first thing you ever coded? It's going to make a big difference whether you taught yourself or learned in a classroom setting--Hello World.
My first project was when I was about a freshman in high school creating a text based RPG like Dungeons and Dragons on an Atari computer using BASIC. I had some sort of instruction manual I was using. Had to save my work on the ever-reliable cassette tape player, Never actually finished it, but you could create your character and play for awhile. The "rooms" and encounters were randomly created from lists. There was no save game, and if you died you started over. It was a roguelike before Rogue (you can correct me, but I don't care).
So what was the first thing you coded?
i think it was a game using GameMaker where you competed against another player to try to reach the end of each level first, while dodging two different variations of ghosts who would send you back to the beginning and using teleporters which would send you to random positions on the level.
I will note that this was a remake of the game my brother made, after we lost his version when we had to reinstall Windows. So I had seen him create the entire game before and just copied it.
I did also make a very simple slot machine in high school using Visual Basic. That's probably the first proper program I made where I wasn't just following instructions.