I know that part of my issue is that I'm overly ambitious in what I'm trying to produce for my students, and I keep finding more things that I could do to make my class more intuitive--or at least more user-friendly. The enormity and the interconnectedness of everything I still need to put together makes it difficult to figure out which part should be completed first. No sooner do I get to work on one part than I realize that I need to get something else done before I can finish the part I'm working on.
Sorry for the whining. I've been relying on coffee rather than a full night's sleep lately, and it's catching up with me. In truth, everything is coming together, but like making sausages, it's not a pretty process.