Heh. That was my Arduino “Hello World.”
I took the sample “Blink” sketch, and added a “while…” loop to make it blink four times, pause, blink four times, etc.
(Then for the next act, made button #2 on the prototype shield trigger the blink instead of having it run all the time.)
Think baby steps. I say this for practically every endeavor. Start out small. Get your feet under you. Then you can launch into an ambitious complicated piece of art that you will struggle with for months and finally give up in despair over – but in that effort, you will have poked into enough of the nooks and crannies to now be, basically, competent at the subject.
At which point you can start your “real” first.