@Chrysalis - Well, since you asked...
My growing plan is to get a side-blog going purely about my writing habits and what I do to get unstuck (and maybe why I got stuck in the first place). The short of it, though, is that I got stuck this time because:
a) I was too attached to some ideas and burned weeks trying to make them work (i.e., paragraph smart, chapter dumb),
b) I had too many major plot points I wanted to shove in,
c) the time I found to write never accounted for the environment I needed to write,
d) work sucked every ounce of my motivation out,
e) the pressure of taking so long and potentially disappointing people made me insist I couldn't post anything until it was 'perfect' as an apology.
To get unstuck, what I did was:
1) include those ideas indirectly, whether by implying them (e.g., that thing I wanted to do? It totally happened, but off-screen), moving them to a later part of the story, or - hardest - reworking the entire chapter to the point that those ideas, like a funny line or something, sounded really 'off' because they didn't fit anymore;
2) condensed what I was writing so I could give the shorter scene its full attention, which I think upped the final quality of the pacing;
3) wrote either when I was so done with work's shit that I just didn't waste energy trying to care about it (I do not recommend this. It's a symptom of a greater issue I'm trying to resolve by searching for a new job) or when I had time devoted purely to it, like on weekend or carved-into-my-calendar sessions that I could mentally prep for (once it's written down, it's real);
4) actually figured out what my ideal writing environment was and tried to get as close to that every time I could (next to a window, overlooking some form of nature, silence, no one around to bother me or give the impression that they might bother me later);
5) hit a point where it was so freaking long since I'd last updated that no one was around to care anymore (again, I don't recommended this, and a big part of me is still bummed that I lost that great boost from Maddirose sharing TOKoR with her readership), which meant I was writing for me again and therefore for fun, the original point of all this.
So yeah. That won't work for everybody, but hopefully some people can grab a takeaway or two. At least I know now.
@Jim - I am the living embodiment of 'give work to a busy man'. A month is too long for me, too. Unfortunately, I'm spending ten hours of my day doing nothing at my job or commuting around. That's murdered any forward momentum I could be using to write. I was doing bi-monthly originally ('originally' - ha! I'm not even that far in), but I pushed it to account for slowing down and then I got into the stuck-rut. I'm trying to move into a better position, where my mental energy's not going down the toilet trying to make busy work for myself.