Wow, Kakashi really looks sexy here Interesting how the strap of the eye patch traces the outline of where his mask would be. I'm not quite sure what he is doing with his hand, though. I tried to mimic the pose and couldn't figure out why he should put his hand there. Great work nonetheless.
Ah. Well don't worry, I had trouble using it at first too.
Well first off, if there is a tutorial, I highly suggest that you go complete that first so that you can gain some experience. If not, just continue to play around with it and experiment. You'll eventually get the hang of it, I'm sure Before, I simply imagined that I was drawing on regular paper, so that might help a bit.