I don't actually know how to end the story.
What should I do!?
Well, you have two options, and neither of them are "continue revising chapter one."
The first one is pants it–start writing again and write junk until you literally BRUTE FORCE yourself into momentum. This might be unpleasant. I have gone so far as to start keyboard mashing just to force my hands to work over top the keyboard, then that will evolve to gibberish, some trash storyline, and finally I can laugh and go, "All right, I can do this," and type the first real word.
Sometimes the writing you do is practice writing, but it's building blocks, so that's okay. If you're enjoying practising editing, then you may as well keep doing it–but you're not a writer if you're not
writing. So, the solution as a pantser soul is to force yourself with no mercy to write, until it shapes into something valuable for the edits that will come.
Or, you can take option #2, which is to figure out how your story ends. This is the planning route. Find something really exciting to aim for. If you're having trouble envisioning an end, here are some questions you can ask yourself:
"What does my character want, more than anything?"
"What will happen if she gets it?"
"What will happen if she doesn't get it?"
"What will happen
when she gets it?"
"What would make this moment twice as bad?"
"What matters most to my character?"
"How can I steal that from them?"
"If I was reading this story, what would be a satisfactory ending?"
"What does it mean if they succeed?"
"What would be exciting?"
"Why will x and y character meet?"
"Where is a cool location for the final battle?"
"How can I crush all of their hearts?"
So on and so forth. The trick is to find something in the future of your story that you're excited to get to, and work backwards from that to where you are now. It's okay to be a pantster who becomes a planner, and fnangle yourself an outline now. As for what you need to fill into this hypothetical outline, it can be as loose as you want. Even if you're just like "chapter 18, x happens, because of that y happens later." "chapter 19: soinso does the thing, because of that this other thing happens." and fill in the fun details in the middle.
Do not fear the outline. The fun stuff will be found in writing the meat!
Not with that attitude, you won't.
Yes, you will. You
have to. You came here because you
know you need us to tell you to
move on. Stop living in fear of the unknown. You've edited chapter 1 dozens of times, and you know the power you hold in the edit, so go write the rest of your novel, and edit it later! Seriously, go put chapter one in its own file and only look at other parts of your novel. Take it away. Force yourself. This is the novel you're looking for.