How to become a cpo
It made me
Uber-Happy! 
"Becoming a CPO in NJROTC was the most fulfilling moment thus far in my high school career."
How I did it: I learned what the requirements were for every rank I had to attain to get to E7, and just took it one step at a time. If there was a concept or skill I didn't understand, I asked for help from my superiors, and eventually, I was able to go up for and attain the cadet Chief Petty Officer rank.
