I did it! I finished my race today in 55:57:4, 53rd out of 376 runners--I can't believe it! Thanks, everyone for your support, especially my hubby and my sister, who was the first to hug me as I reached the end.
It was definitely an amazing feeling to cross the finish line. Now that I've proven to myself that I can run (in front of other people), there may or may not be more races in my future. We'll see :)