I’m pretty sure I wrote this around the age of 10 or 11.
As a kid, I loved reading Willard Espy’s Almanac of Words at Play. It contained a story written with no vowels except E. I thought, “E? That’s easy. I’m going to do one with only I.”
So I did. It’s not exactly a poem, but it contains a lot of rhymed verses. As far as I can tell, there is only one error (on the first page; I guess I got the hang of it after that).