First, slow down, step back, and take a deep breath, and get some control over your thoughts for a moment.
World-building comes easy for me and I'm happy to lend any advice I can.
You obviously have a very over-active and creative mind - which is a wonderful trait to have as a writer.
But it also sounds as though you try to go in too many directions, never settling on one idea or another. The moment you get a handle on your story, you might over-think it, and try a different approach, and then lose track of the story altogether.
News flash: We all do it. *^^*
Here's what I do to keep focused on the story I want. Realize that yes, you can probably write a better story at any time.
But it doesn't mean you have to.
if what you already have is working for you, then stick with it. Design a full story outline and character list, plotting out your story bit by bit all the way to the end, and present your characters, their info, back stories, and relationships with others. Do all of this, and then go into your story again, focusing JUST on the outline and the characters you've done. Try not to think about other avenues and just go with what you've done; and you'll write a much better story because you stayed focused on your plan of action. *^^*
Problem is by the time that I realize theres a problem I'm already in too deep. Well, okay, I was trying to talk in more generalizations in this thread. But I think to be clear I need to delve somewhat into the specifics of this specific time that triggered me writing this thread. But this is just on example, I've had similar problems many times; this one in particular has just been kicking my teeth in for months.
So I have this project called Generation C, right? and its an MLP inspired, but mostly original setting, which I started working on for a few different reasons. For one, I got the idea when watching one of the MLP movies and I got a lot of ideas of plot points from that. For another, I've wanted a story dealing with magic and technology both existing fairly developed within the setting at once. And for another, I had the idea of 'what if I was to have my own generation of MLP'? and it kinda went from there.
Now during that initial brainstorming stage, I came up with a lot of ideas. Most didnt stick, but many did. Eventually I cultivated and pruned a cast of seven main characters. And I'm very happy with where those ended up, though it took me an entire year to do that. Now I worked on developing those characters arcs, and how they interacted with the world, and the plot thread ideas I had developed. All well and good.
But then only fairly recently did I realize two of the core ideas I came up with WAY back at the start of the project resulted in some
weird combinations! So basically the two ideas in question was: 1), I had the idea of the pony race having lots of subvariants with traits from different types of animals. Something a little like Arknights I guess, where theres lots of people from different races with different traits... but with ponies. Now this was one of the core ideas of the setting and is a major part of the worldbuilding, theres lots of different nations with their own races and some of them have their own unique advantages or disadvantages.
But then 2), I had the idea that lead to the main thrust of the first major story arc, where most ponies didnt have magical abilities and instead developed them as they grew up. The types of magic they developed then was related to their personality and identity. Thats basically just lifted from Heartlands, which is my main fantasy setting.
And now those ideas worked okay in isolation. But when combined I ended up with this really weird problem! because, if you don't know, in MLP ponies magic is kinda directly linked to their anatomy! Unicorns can cast spells, pegasi can fly; they ahve horns and wings. Only now I have all these different races which are different from eachother... But because of the second thing, the types of magic they have can't be based on their race. But parts of their
anatomy are based on their types of magic! And... Well... Now its just a big 'ol clusterfuck of confusion. Some races have horns but don't do magic! Do wings just show up in adolescence? Magic can't be linked to the subrace/subspecies because theres a whole big plot point about only aristocrats having magic, but then some types of magic just dont make any sense on some subraces! Heck! I ruined everything!
And now I dont know how to untangle it because, well, I already made the plot based on both of those things, and trying to undo either of them would require me to rewrite *huge* swathes of lore, character backstories, motivations, even the storyline itself. And now I just don't know what to do! And I don't want to scrap it either because, I mean, I've literally put most of the last year of my life into this project, it would be no exaggeration to say its a significant portion of my entire lifes work up to this point. And further, my writing for this project is my favorite writing I've ever done.
I wrote up a bunch of possible 'solutions' but all of them are terrible and have awful consequences and I really dont want to do any of them.
sigh. And yeah. Now I'm here...