Primary concern

for a secondary school student...

Yep, things are a bit different now. 
There is homework to be done. Even on a Saturday morning. First time ever.
There is a first time for everything. 
The tears of exhaustion on a Friday afternoon. The feeling that you are constantly falling behind. The rushing from one place to another, from one subject to another, from one problem to solve to another. 

Somehow, secondary school is better than primary school at grooming you for the rest of your life... 

Nana's interview went pretty swiftly, on your brand new phone. You were too busy writing stuff in your history copy about "how things were in the olden days" to inquire about peripheral stuff like how she was, or anything else not related to your homework assignment.