Though if you're good, try punching above your weight. My experience with interns has been largely positive and they were easily doing junior/intermediate level work that was being shipped to production.
Those intern positions are usually for university students, and as a highschooler, they're already sort of punching above my weight :)
Internship positions should have "INTERNS" in their comment header, so it should be relatively easy for OP to allow filtering by intern spots (maybe in the full time/part time/freelance dropdown?)