Weebly Site

I had a hard day on the computer today.  Initially I was very pleased with the progress of my site and then I lost the header with a very nice banner that I had created.  It is a very long story which I won't go into and also the design changed.  I was choosing a design template for like the 10th page I was working on, and for whatever reason, the first page changed and I couldn't get it back.  Not yet anyway.