Hope this is okay. I'm not getting anything for sharing this and only wish to help other artist's seeking a business framework.
I've followed the author on socials for a while. She offers straightforward advice that works. And yesterday out of nowhere, she just shared her new book.
It's free on Amazon Kindle. I'm still reading it ... it's good. Relevant. Show Your Art: How to Build an Art Career Without a Gallery
Offer to help your art teacher clean up or other tasks in exchange for giving you time in the studio, and to glaze your own pieces. If you end up loving clay then you can work towards building a home studio. However if you think you might go away after high school, you may want to hold off on your own studio, as the kiln and other equipment is not easily transportable.
Googling everything is going to take a long time to figure out what applies and does not apply to your work. I would recommend starting with a book, and using search to augment your information. Your library probably has this one:
https://www.amazon.com/Potters-Bible-Essential-Illustrated-Reference-ebook/dp/B01G8U33YK/