I’ve been there, feeling both stuck and hopeful. In the comment section I wrote:. Linger. Bite your nails. Sleep on it.
This is what popped into my mind about how I’ve handled last lines. Lingering: sometimes staring at the page, though staring out the window usually works better. Biting my nails: I obsess, but it doesn’t help as much as setting the question in my mind then stepping away, talking a walk or taking a nap.
This morning, because I’m very fond of Tracy, and, I suppose, offering unsolicited advice, I’m thinking of other ways I’ve looked for endings. Many times I’ve lopped off some lines and found the right ones buried just a little bit back. Is there a clue in my title? Or on the first page? Do I swing back from where I began or further away?
Sometimes I’ll look at how other writers handled this, maybe reading some poems that have entirely different subjects but noting the strategies for ending: do they land on an image or question, does the view widen or get smaller? A technique such as this can be borrowed and made your own. (And maybe it's just getting out of your head for a while, and into another's, that's helpful.)
Since I think first with pictures, moving away from that and playing more with sounds can work for me. I like to switch from thinking of what I do as writing, to find parallels in music, art, dance, some other form less embedded to literal meaning. Is the sound one I want? Is the weight too whispy or too heavy, the balance right or off just enough? Is there an interesting shift in color?
Do I hear a Huh? I go back.
Or The End? Maybe that’s too much of a thud.
Or is that mystery and resolution curling together?