I understand, and I've tried this for a long time, but unfortunately it didn't work very well for me.

First, the level of uncertainty is very high right now, and I can't afford to have a fixed calendar for the whole week. In fact, it's pretty rare that I manage to stick to the same schedule for even half a day. :X Also, it's often extremely difficult to estimate how long certain tasks will take because they involve both spending time with people (who, by definition, are highly unpredictable) and thinking strategically (which can take anywhere from 2 minutes to 2 hours).

That said, I do relate to the idea that "less freedom" can lead to "more happiness"! I try to apply this as much as possible when it makes sense, especially in my personal life.