Can’t high school athletes compete unattached at high school meets? I’m not entirely sure if that can be done with sprints. My distance coach use to run as an unattached 8th grader in some of the local high school cross country meets. He just wasn’t allowed to grab a time, so runners like him just stepped off to the side before the finish. But the take away here is that you want to be able to use and compete with your competition. Racing against guys way beyond your level just becomes a time trial in the end. No fun in that!
And are you having to pay for these meets all on your own? It sure isn’t cheap to race! One of the benefits of high school competition: I never have to pay for any of my races.