I definitely feel you there with the winter struggle, especially since it's so cloudy and thus dark so much lately. Daylight lamps definitely help a ton (even though they burn your eyes out the first week since you need to get used to them first).
And hey, you did get some work done and kept your community updated. That's already more than many indie devs can say they did. It's sadly a rare thing to have a dev do such consistent dev blogs and it does wonders for letting people know there's a point in waiting. Most players don't mind waiting for a nice update, if they know there's a point in waiting since the dev is taking their time to cook quality stuff instead of rushing things half-heartedly. So just popping up and saying "hey guys, things are slow, but I'm/we're still working on the game" goes a long way compared to just going radio-silent like many other devs so their players have no clue whether they're gone for good or will randomly pop back up after a few months.