At night, I would write out BASIC programs in pencil in my school tablet, to type in the next day.
I tried writing a basketball program that would generate a court in ASCII, with X's and O's representing players. I typed in NBA stats from USA today, to model various players field goal percentages and other attributes.
I tried writing a fantasy game with a generated map. I remember drawing a meandering river, randomly plotting the direction of the next pixel within certain parameters.
Needless to say, I was hooked, and have been programming computers for decades since.