I can do this for one endless day. Don.
I don’t think I’d realized before that I could—I can really do this. I can do this for one endless day. I can. Don.
Context
Joelle's breakthrough spoken across the bed, sealed with his name: not that she can stay clean forever, but that she can do it for one endless day, and that she gets to choose how and will be helped to hold the choice. The reframe is the whole difference between her every prior relapse and this attempt — sobriety as a single present day repeatedly chosen, not a lifetime sentence to be served all at once.