Linda: Thanks. Your suggestion sounds good.
I forgot to mention in my post that I save my work after I complete some new feature or before I start on a new feature (such as adding a border).
So, when I completely messed up my project, I closed it without saving it and just opened up the previously saved good version.
I'll try your suggestion as soon as I get caught up. Right now, I am one full day behind and have not started project 5.