Endings are always the hardest part of a story for me. Always have been. Fortunately, although I usually spend half the story fretting about it, by the time I actually
reach the end something usually pops into place in my head just in the nick of time. Sometimes it's been pretty close though.
So, unfortunately, haven't got much to offer in the way of suggestions.
But you definitely aren't the only one.
LabRat