advise on programming an LED strip

i recently purchased an Arduino Uno and want to use it to create animations, text etc for an LED "curtain" made out of RGB led strips using a TI1803 chip, but all of my attempts to program in C++ have failed miserably even after watching countless tutorials. I've also tried using a pre-made sketch and attempting to modify it to my liking but all i get then is random blinking. would anyone mind walking me through how to create my own organized LED strip sketch? Thanks!