I've gotten this kind of request more than once:
"Please help me think of a new twist ending, wala akong maisip at parang nakita ko na lahat eh."
Nakaka-writer's block nga pag ganito ka mag-isip at magsulat. Putting pressure on you to "outsmart" your reader is hard, because you're trying to keep one step ahead of people who read a lot and don't have to write as much as you do.
My suggestion? Let it go. :)
If you LIKE writing "twist endings" and you do it well and you have no problem thinking of new twists, GO AHEAD. Hindi mo ito problema. :)
But for those who feel they have to ask for advice, then:
When I teach writing classes, I require students to THINK OF THE ENDING FIRST. Thinking of the ending first allows you to PREPARE for it, so the chapters of your story ARE NOT INCONSISTENT.
A twist ending has an effect when it's CLEVER, when it SURPRISES the reader, and also WHEN THE READER DOES NOT READ A LOT.
If nahihirapan kang mag-isip ng ending na "hindi pa nakikita ng reader", then maybe you shouldn't even do it. There is a logical ending to your story, to any story, based on how you've been writing it. When you let that ending happen, you are writing a SATISFYING END to your story. When you go for the OPPOSITE ending just to "surprise", then that naturally leads to a NOT SATISFYING ENDING.
So, if the question is, "How can I write a twist ending that will surprise and awe my readers?"
The answer is, if you have to ask, then this is not how you should end your story. :) Instead, write the ending that makes sense.
BINABASA MO ANG
Publishing and Self-publishing: Advice for Writers
Non-Fiction[FILIPINO/ENGLISH] Advice for writers based on my experience self-publishing (more than 20 novels as of now) and traditional publishing (more than 10 novels with a traditional publisher, and consulting for other fellow authors). Read and learn, but...