I tend to focus 2-3 days on the base defense for horde night, and usually focus on development and priorities early in the week after a horde night.
My most recent game, I took over a fairly simple barn that offered a pretty good combination of roof access and a safe 2nd floor. it was almost entirely made of wood, so I ended up spending a lot of time knocking out the wood at ground level and replacing it with flagstone, which ended up really not making any difference at all. The building itself has taken pretty low amounts of damage despite the promise for 'pillar knockers', so small blessings there.
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The effort spent hardening the barn wall was pretty worthless, since the damage was minimal, and that ended up postponing the perimeter wall by two whole weeks, which turned out to be MUCH more valuable in driving zombies to a more condensed combat area. 'priority' after Week 1 was overtaking the nearby crop fields for my own, and laying groundwork for a workshop area outside my perimeter wall to spread the screamer pressure to a building that should be idle during long jobs.
Priority after week 2 was a bicycle and starting a mine down in the desert for shale. I was starved for oil, mostly for molotovs, and hadn't really focused heavily on breaking down cars. The mine was also expected to bring in some extra iron and material for cobblestone (and later cement)
With the wall complete in time for the 3rd week horde, I enclosed the workshop and focused wholly on a motorcycle and trying to find a beaker to get my own chem station. I had been using a camp near the trader that has turned into a hotspot for wolf and dire wolf spawns, and that's not a good thing when you're busy working with gunpowder.
Now in the 4th week, I still have no chem station with beakers being stupidly rare, the trader is tired of me dropping off more guns than ammo, but I have a motorcycle, and I'm COMPLETELY starved for clay and stone. I have an augur that just is a bigger danger to myself than the rocks I'm trying to dig with it. The total sum of concrete I've been able to produce was barely enough to make a parking space for my motorcycle.. which isn't very much.
I just can't produce enough material, to the point where I am starting to get Ark/Conan Exiles flashbacks with the amount of manual labor I have to constantly devote to in order to enhance my defensive posture. I have electrical systems, but no resources to deploy them effectively. I'm short on engines, concrete, and cobblestone to extend my defensive perimeter and add an extra layer to whittle down the incoming hordes... so i've already lost for day 35. Having spent literal days trying to get a chem station up and running (and failing) has cost me time. There was an entire hospital next door that took 2 days to clear, and not a damn thing in it I could use.
At level 56, I've mostly finished INT'ing up, and plan on focusing on neglected development in other perk trees, so I could get away with hopping on the motorcycle and ditching the BM night entirely without feeling like I'm missing out on xp.