I was in 6th or 7th grade when I first started coding on an 8088 with DOS and Turbo C.
The first real program I ever wanted to write was a reminder app for DOS to use for a little business I came up with and I never finished it.
The idea was that the app would let you enter people, phone numbers, and details about what you should remind them of. The app would generate a daily list of people to call and what to say. I started on this but didn't get far, lost interest when trying to figure out how to save and load data from disk (I didn't have any programming books and no internet of course).
What was the first program you WANTED to write but couldn't finish?