PSE does have a high learning curve. I came to it from another program, Micrographics Picture Publisher, which from what I understand is now owned, and no longer produced, by Corel. The two programs used alot of the same terminology so it made the transition easier.
Layers....one of the most powerful features of Photoshop and Elements. I picture layers like the transparent overlays used on overhead projectors. You can stack the layers one on top of each other keeping individual pieces of your design separate. This allows you to edit/adjust one object with out affecting the others. In my pin trading logo, below, each character on the out side of the ring is an individual layer. This allowed me to rotate each one into the position I wanted them. They are all behind the purple pin trading ring as is green cloud pattern in the center of the ring. The banner is the next layer, then Chernabog, then the flames. The text is also a separate layer on top of the ring and behind Chernabog. Because I set it up this way I can easily change the color of the banner, the color of the ring, swap out any of the characters or eliminate them completely and change the name. The Roo logo on the right is made using the same ring, banner and text.
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If you search the web you find many tutorials for PSE and Photoshop. Alot of older Photoshop lessons can be done with PSE although before trying any of them you'll want to become familiar with the program as some of the commands and menu items are in different places; some options are not available in PSE but can be worked around if you're familiar enough with PSE.
If there's interest in a layers lesson I'll throw one together and post it somewhere.