Kimber, I was on vacation when you started this thread, but I hope you were able to pull things back together in time for your class?
Some of my best
and worst painting has been done in the middle of the night -- Can't trust my judgement after 2am... but
sometimes things will click then. . . (I've been having to do a lot less re-work without so many all night painting jags!

) Having a good painting day or not, for me, seems to have a lot to do with mood and focus. Some days are 'on' and things just happen
right. . . On those days I try to get as much painting in as possible on the more important areas of the painting. On days when things are just not clicking -- because of distractions or for whatever reason-- it might not be such a 'good' painting day... but working on less taxing areas (like background areas away from the focal point) or just walking away and taking care of laundry or non-painting errands, like ordering supplies, can help to keep it from becoming a
bad painting day.