Stuck in a classroom

This is the story about 3 middle school girls named kora, Clarissa, and Alyssa. They are all stuck in a classroom and can't figure to get out so they start to panic for being in the classroom for too long + the next time the teacher was coming back to school was in 1 week but they thought she was coming back in like 5 years. Kora then started getting claustrophobic and started hyperventilating.

Btw this is an old story I wrote.