Where to find unproduced scripts to make for free?

Hi everybody! I'm in high school and I'm a aspiring director. Talking to people in the business, they always tell me that the more practice you get, the better you'll be. I find this hard to do when I don't have any scripts to make. Does anybody know if there are any online resources out there for people like me, that want to produce scripts, and can't pay for copyright costs? I'd love to hear from anyone! Thanks!