I have a 13 X 27 living room, with 2 windows and a door on one wall. My furniture is dark green with dark wood accents. I can’t afford new furniture. We want to get rid of the yellow, what color would you suggest?

I’m painting a ceiling. Can I say do half let it dry and do other half tomorrow? Or will I end up with marks that stand out due to me not doing whole surface at once?