I'm making a world, help!

Im making a world, and i just really need things to put in it, cause i want most everything to be unique in it. And I've been getting ideas from my new bf, who makes worlds, but i still want help. Currently the magic system is based around these things called spherules that totally are not inspired by the automaton from slay the spire. and the spherules will not be like fire frost lightning, you know, the classic magical thing. they will be entirely unique magic elements. Oh yeah I'm back btw.

things to put into it? there's a lot of different things that could be. what scale are you talking about? countries, different societies, locations? or smaller scale stuff, small details about specific objects or people?

Would you like some help with making a world? (advice may be edgy)