Saving issue

Hi,
So I created a song a while ago and while I was recently working on it I went to save it, I clicked "save as" instead of "save" so I just clicked on the old version to overwrite it. However, during that time I had created a second page that I used to try out things separate to the song. For some reason, even though I had my original song open, it saved the extra page instead and not my original song. It also won't come up on the "recently closed." Is there a way I could get it back?
Thanks