I cannot believe I did it. Thank you all so much for the encouragement! I love the finished product, and it was ready (thanks to a little help from Darren!) with not a second to spare before I left to pick up my mom for our girls' night out. I knew I would be cutting it close when I had to put my work down to clean up a major mess after the toilet overflowed all over our master bathroom! (On the upside, I can't remember the last time that floor has ever been so sparkly clean.)
At any rate...it's done. I can now breathe a huge sigh of relief and hope to, for once this week, get to bed before one a.m. Although, that's no guarantee I'll actually sleep.
...tomorrow, my mom is getting married.