gasoline.

"W-what?"

Charissa sludged down the stairs, and dropped into her chair. She didn't want to go to school. Definitely not today.
She had six tests that she never studied for, and two presentations that triggered anxiety at the thought. "Charissy? What do you want for breakfast?" Her mother shouted from the kitchen.
"Not really hungry, mummy, but ill take a banana and water."
"I- Okay sweetie, you sure you don't want any toast? It can be plain."
"Yeah yeah I'm sure mummy."

You should go for a run before school.

Maybe that'll help.

"W-what?" Charissa breathily whispered.