Hi, I am taking a college composition class, but I am still in high school. In high school, I wrote an informative essay on a topic, and my college class has a writing assignment where my essay would satisfy the requirements, once I change my essay from informative to persuasive. If I modify my high school essay slightly would it be considered plagiarism considering that I was the sole writer of the original essay and it would have been turned in, to turnitin, but not posted publicly anywhere?

Should self-derived written content create a possible issue for my course?