what techniques can I use to stay sane whilst building my world?
But then I started thinking, is this about world building? Would such a question be considered on topic? Will this site cater for questions that are not directly about building a world, but more about the people building the world's and any queries they may have during the process of building a world?
I think that that with a rewording, the original intent of the question could remain while the answers would be more appropriate. Just off the top of my head:
What techniques can be used to keep track of complex interactions between cultures in a world?
How do you organize your design so that you can keep track of what has been worked on?
These examples, instead of going "my head hurts", instead focus on methods and practices used in designing and building worlds, while giving the same kind of answer. Its about asking the question with the worldbuilding being the focus, rather than the worldbuilder.
Absolutely. Consider a question like "X is driving me crazy. How can I resolve it?" It's hard to define the line between "helping define my world" and "helping me survive the worldbuilding process" while answering that, and I don't think we should try.