Take it a step back from Photoshop and get a copy of Lightroom, it is mostly for subtle changes to light settings but really comes into its own if you shoot in RAW. the advantage is it is also made by adobe and allows direct export into Photoshop without loss of picture quality or introduction of noise when you are ready to take editing to the next level.

I have found any changes i need to do i can in lightroom and it has a fantastic layout great for beginers, but full capabilities that almost all professionals use it.