Playing around in Photoshop

So I have finally started to play around and I feel I am starting to learn something. It amazing how much time one can spend on one project and in the end feel like you have made little progress.
But from experience I know that the "mistakes" I make now will prove useful later.
using a free layout I downloaded and a photo taken by Claudelle Bender. One of my favorite photos of my daughter on my husbands bike.


What I would really like to accomplish is to get the picture behind the flower and the words. I wish there was a button that I could click says take picture to the background.