Those are all quiet activities; it's the same as curling in on yourself, because it gives you too much space to get further lost in your head. You want to do the opposite and get those feelings out.

[Rin turns halfway back towards the door, stroking her chin.]

Something aggressive, then... [Blessedly, she's starting to sound like she's talking to herself, but she's saying some pretty out there things.] But we don't have a gym, or even a boxing ring. Maybe the storage room has balloons...?