The first game I ever made was a crappy Pac-Man test thing I made in high school using Flash. Couldn't figure out how to get collision working, so Pac-Man and the ghosts just went randomly across the screen. Tried to make a visual novel after that that went nowhere.
I tried again recently to make a visual novel, but that didn't work either. I had this neat idea to make a non-fiction video game, featuring several perspectives during World War I. It was too ambitious for someone with basically zero experience though, and it flamed out after a couple of weeks. Would love to try it again sometime though.