By all means learn the CCI.
To make it in trading, you will need to spend less time listening to others, and more time listening to yourself.
You will have to learn to think for yourself.
The very best system is the one you create.
Here's something I posted a while back that may help:
"Don't get "stuck" in a box.
Don't let "conventional" wisdom stop you.
Take that, which "doesn't" work, and "make" it work.
Picking tops and bottoms doesn't work? Make it work.
Trading with the trend doesn't work? Make it work.
Price Action doesn't work? Make it work.
Indicators don't work? Make them work.
Not Creative? Get Creative.
Laziness is the "enemy" of creativity.
Have a "burning desire" to get better.
Work hard enough, long enough, and you will "become" creative.
There's one "word" that you will face everyday until you become successful.
That "word" is called "discouragement".
And how you deal with that "word", will determine whether you "win" or "lose"."
Goinglite