I got up this morning with a list of things I wanted to accomplish. First on my list was to swap out the bathroom vent/heater fan in our bathroom. Ten hours later, I still have work to do to finish the job. It turned into one thing after another to finish. I had to cut out a big square of sheet rock out of the ceiling to get the fan out, then I had to re-wire everything, because the new fan was wired on the opposite side. Then when I got it all up in the ceiling, the light didn't work! I couldn't figure it out. I tested the wiring, and found that the light only had power when the other lights in the room were off. I still don't know what is going on. I sheet rocked, and have put on the first layer of mud to seam it in. I'll figure out the power later. Maybe.
Good luck with YOUR honey-dos. Stick.