Hey Will,
I get in funks like that sometimes. For me it's usually overwhelm. Kids, family, wife, work, school, committees, community, plus....just a whole bunch of undigested personal growth issues. It get where I just don't know where to start there's so much to do, so I find myself not starting at all.
What gets me out of it? Hmmm, good question. It seems to vary, but it's a pretty safe bet that the shoulds and shouldn'ts don't really do it. It often just seems to eventually wear off. Sometimes, cleaning and streamlining and organizing can help. Sometimes not. Sometimes I figure it's just alright to do nothing and kind of shut down for a while. Sometimes I just keep slogging it out until I snap out of it, often accompanied with a wee bit of 'get over it already, you sluggard.' Sometimes a few kind words from someone else will lift my spirits. Sometimes being mindful of the miracle of my kids will re-fire me.
A friend of mine once told me when he was overwhelmed he would think, "in 40 years I'm going to be dead and none of this will matter." Of course when I tried that I went, "OH MY GAWD! IN 40 YEARS I'm GOING TO BE DEAD...and I've got so much left to do. I'll never get it all done. It's hopeless!"
I guess what works for one person, ain't necessarily going to work for another. It's a safe bet though, when the humor comes back, things start looking up.
All the best, Phil