You might be doing it wrong. Make your code more modular. Think about how powerful functions actually are. But also make them simple and self contained. All those programming books suggest this not because "it's pretty", "good form", or whatever. You do this because you know that things never work out like you expect them to. Only a naive programmer or a literal god thinks they'll get the program right on the first go. Even just the fact that the world changes underneath our feat means it will change.
So you write expecting things to change. You write so a change can be added quickly and not break everything else. You write so you don't have to pull apart a bunch of tangled mess. There's a lot of complexity no matter what, so even a little goes a long way.
> My sleep is nearly nonexistent so I don't have a lot of time for logging things anyway
I'll bet that if you log you'll get more sleep. This is a classic negative feedback loop and is honestly why I started doing this in the first place. A little extra work upfront saves me a lot of work down the line. You need to be concerned with today but that doesn't mean you can ignore tomorrow.
The point of my strategy is in how positive things compound. A little here, a little there, do this for a bit and you got something beautiful while it seems like you did no extra work (because you spread it out)
But the negative effects compound too. They create more work. The less sleep you get the more mistakes you make. Worse, the more subtle hard to catch mistakes you make! You just end up missing sleep chasing down bugs and issues introduced because you wrote while being sleep deprived. We all do this! But we need to recognize it and try to break this cycle as soon as we recognize it happening.
My bet is you are the one creating most of the work that is keeping you up and making you feel over burdened.
My bet is if you take a break you'll actually get more done.
My bet is you're caught in a destructive loop.
I'll make this bet because I have so much experience with this same self-destructive behavior. Been there. Done that. I don't want to be there nor do I want you to be. But to get out, you have to fight that impulse that got you there in the first place.