What to do next
There's always something left to do.
Even when you feel like things have come to an end, and there's nothing left.
Don't believe the lie that you're done. How the devil loves to sing us that stupid song! It's a constant cacophony in the ears of the discouraged.
Change the tune. Refuse to give him space in your head rent free.
He's such a liar!
There's always a next. Always.