I've never really looked at any tutorials hahah...
not much of a guide person.
But you'll definitely benefit with guides, hessah. xD
What I did was I one day found ps on the computer, and I mucked around with it in my spare time LOL. And then I saw lots of pro people's stuff and tried to duplicate it with my current knowledge HAHA. If that failed then I went on a searching rampage for their method, and then tried to apply it and make it better (somewhat =_=).
Hahahah but yeah just experiment a lot!
You'll eventually find everything if you go through every corner of the program. o_o
^
That's coming from a person who doesn't even know how to use channels. =_=