The trick to learning Photoshop

Many years ago I challenged myself to learn Photoshop. It looked easy enough but I never really got a grip on it for many years despite many attempts. I wish someone had told me then that the trick to learning Photoshop is to master two essential skills: layers and selections. At this point of my journey in Photoshop, I feel that I have passed a critical milestone. Everything about Photoshop seems to fall into place now that I have a good grip on layers and selection. I know it will take me a long time before I can do fancy artwork, but at least I don't feel lost.