Every story I write has stretches where I hate every word that has been written on the story, my mind is convinced that the whole story is garbage, and I’m ready to get rid of the whole thing. I‘m sure other writers have felt the same. I don’t have the cure for this condition yet, but I do know two things about it. The worst thing you can do now is stop writing on the story and the second worst is to trash it.
The voice in your head that is saying the whole story is trash is you inner editor. This editor doesn’t recognize the good from the bad when the story is being written. As long as you are writing it the inner editor thinks it sucks. And if you listen to that editor you will never get a story finished.
So, the story I’m writing might feel like it is garbage now, but it may not when I read over after I complete it. If it still feels like I should trash it after that, the best to do is to put it away for a long period. Sometimes pieces can be salvaged from it, or I read it later and realize it was not that bad. But the worst thing to do when that feeling shows up is to quit.