As cliche as it sounds, messing with photoshop by yourself is the best way to learn it. That's what I've done. Tutorials are nice and all but learn stuff through trial and error is so much more fun. I'm still learning the program and I've had it for awhile.
I came up with something but I hate it.
@ high end of low
Ah I just don't know how any of the tools work or even how to start something.