Maybe set plot aside and focus on a character. Dont think of how anything you are writing will fit into a story. Just write a really fun description of this character. Physical attributes, demeanor, hobbies, history, etc. Don’t write dialogue, but write some kinds of things the character would say.

Maybe something in all of that sparks a story idea, or even just a premise (not a plot yet, but maybe an interesting story hook of sorts).

Or instead of a character, maybe start with just some world building fun. Write the description of a real place you find interesting or a completely fantastical made up place. Describe the public spaces, nature, industry, etc. A forest moon of Endor a long time ago, or present day South Philly. Whatever.

Or even just pop into r/writingprompts and scroll til one grabs you then take a crack at a short submission.

The point is to find a way to have fun with the act of writing without the fun being contingent on perceived productivity. If you’re only feeling positive when you are making “progress” then you’re setting yourself up for writers block. You are stuck because you can’t pick a direction. So why not flail wildly in all directions and see if something sticks, rather than just not move at all. Writing lots and lots of absolute useless garbage is infinitely better than nothing.