before school 

Happening in the morning before school activity begins.

All students meetings held before school.

before school by Alrescha March 7, 2019

Before School Panic Anxiety 

When a teen (usually in grades 7 -12) feels and experiences an extreme rush of anxiety, panic, and nervousness during the time before going to school (Around 6-7 AM). This is usually caused from stress of something that occurs or will occur at school.

9th Grader 1: "I didn't go to school today because I had Before School Panic Anxiety"
9th Grader 2: "Aww man I am sorry I hope you feel better"

Before School Panic Anxiety by Sheepking88 August 29, 2020

Night-before-first-day-of-school syndrome 

That feeling when you can't sleep the night before the first day of school

Guy 1: ugh i can't fall asleep and its 12:20

Guy 2: Seems he's got Night-before-first-day-of-school syndrome

Night-before-first-day-of-school syndrome by Redsoxsuck04 August 6, 2014