Since I've been my own boss for over five years now, it strikes me that assuming the enjoyment of it is going to wear off in less than a week is unlikely.
Trying to analyze those things on a week by week basis is probably not worth much. As you said, no matter what - even if you assume we're fairly poorly prepared for the moves we've taken - most likely it wouldn't be a significant crunch for a few months. So, ask me again when some time has passed, and I'll give you an honest answer.
Simply put, at the moment at least, things are going brilliantly. Everything is as expected, or better than expected in a number of very important cases. The difference between working for myself now and working for myself as I have over the last five years is that now I have someone that I enjoy working with on the project as well. Getting up and going to work is sort of like hanging out - if hanging out is putting on headphones and ignoring each other for hours at a time - which is new to the "working for yourself" experience.
It's as you said, it's a harder venture by yourself than with someone else. Truly, the only real change has not been the change of income, which is always a question when you work as an independent contractor, but more the new sense of purpose. Working for yourself has always been a game of resource management - that's nothing new. Working for yourself on something that you get to claim as your own when you're done... well, that's a different story.
You repeatedly keep making the assessment that going full time was not well supported, and I keep responding by saying that no decision or move we've made has been ill-considered. *shrug*
I have decide I'm going to set up a schedule, though - respond to posts on the forums maybe twice a week. Otherwise I spend too much of my time either answering posts, or feeling guilty that I'm not answering posts.