I've been working on my world for a number of years now. Lately I've had really bad creative block.
I have the main areas of my world 'sketched' out and i have some big picture planning done. but now I am trying to focus on the starting zone and I need help developing it and placing it in the world. I haven't been able to get a campaign idea fleshed out because I keep building random, little things that likely will never matter to the story.

I need a buddy to bounce ideas off of.

Don't build it yet.

Get your players together, have them make their characters, decide on their backgrounds, and figure out how their characters are connected.

Then use the elements they introduce to flesh out the area they come from.

I tend to build within settings for that very reason. Take your ideas and pepper it into Forgotten Realms, Eberron, Dragonlance, or Ravenloft lore (or some other pre-existing setting) and let the existing lore enhance your world.

I'm running a campaign right now that takes place in the Dragonlance Campaign Setting. After a few days researching the lore, I found an old ruins called Santekh, which was just remote enough for me to do anything I wanted to it, but just connected enough to the rest of Khur to interact with the world's various crises, making for an ever-expanding myriad of side-quests, sub-plots, and backstories that involves political intrigue, religious horror, and extra-planar shenanigans. That's a huge part of why those settings exist. I run most of my stuff on Oerth, because it's the most forgiving for anachronistic plot devices, but sometimes, I find that building a house on a sturdy foundation is better.

But if you want, how about you share what you've got, and I'll see if I can ask some probing questions and we can workshop this homebrew world of yours.