It’s not her note to herself, it’s a note from ToumaThat's a special kind of pain: finding a note to yourself from the past.
I'm happy for her that she's taking it as inspiration instead as a marker of how far she's fallen. Shows she really has grown as a person.
So the anonymous chapter mistranslated that, uh.It’s not her note to herself, it’s a note from Touma
On godWe're all gonna make it brah.