photoshop is actually is quite a complicated program.
i can't tell you much without really showing you how to use it.
all i can say is TRIAL AND ERROR
That is how I learn how to use it.
I am sure I only use 40% of it's true potential.
There is way more you can do with that program that I have even touched yet.
However, as you can see.....with what I know, I can do quite a bit
best of luck to you....just play around and have fun.
you'll learn as you go along.