I don't think you are doing anything wrong, per se, but this may be a helpful hint. Go to our Wiki and read Ken's Shaman Macros. What I learned from there was to put all of my shocks that I use on one macro. So I do 9 for ES, Shift+9 for FS and Alt+9 for FlameShock. I would advise trying several different targetting methods (focus, non-focus) and a few different schools of thought on what spells do to where and see what suites you. I use the NumberPad only for heal spells because I read that one day and decided to try it.

Have fun and welcome.