the quickest way i can think to learn is:
1)learn what each tool does and how they all work
2)look around at other people's examples
3)dissect each of their photos and try to reproduce it yourself..
in a sense like driving a car.. i'm only 16 so i can say that.. but once i knew what everything was and started to dink around... it got easy:
nce i understood what each tool was and what to do.. it was easy.. i hope it helped..