Please don't take offence, but you sound really like a type A personality I know really well :)
- Feeling like you are making up work to stay busy
- Treating time like a very valuable resource (not all personality types do that naturally)
- Liking minimalistic surround but not being satisfied with it you go after stuff that is perhaps out of view and stashed away in "cupboards" so to speak
I don't think you are making up tasks just to stay busy, this is more like a therapeutic process to deal with the stress of career transition.
I normally get called something starting with "C", so this might be an upgrade ;D
It is partly therapeutic of course, but I think that it is more than just the process. When things are in their places, daily life feels better. I think it is like driving a freshly washed and vacuumed car.
Have you ever wondered why it isn't just inbuilt into us all?