I am 25 and have been bodybuilding for 6 years now.
Quite a few cycles under my belt...5-6 to be exact.
Got my personal training certification. I was recommended to get the NCCPT, which I did and passed with flying colors. Come to find out later that it is quit useless when it comes to getting a job at your local club. I still train clients personally though.
I am 5'10 185lbs 10% body fat and my ideal sats would be 200-210lb 7-8% body fat.