First off much respect to both BD's and HappyVeg.
Second I can understand loving graff and all, but don't let it be your number one concern unless you want to die of liver failure and spend all of your time trying to prove yourself to some people that in reality don't matter. Your given one life! experience it, live it up.
I have respect for people that turn graff into a lifestyle and do it well, but I could never do it. Don't get me wrong, I will paint for the rest of my life, because the feeling I get doing it doesn't compare to anything else, but i'm not trying to be out there every night bombing or hitting cars. It's awesome and all but it's not my entire life. I want a real job, a real family, and a certain lifestyle and I won't let my hobby (no matter how amazing it is) get in the way of me achieving these things.
I just want some people to realize where i'm at, and if it puts me outside of "the cool circle" that's fine. I respect almost all of the people in the scene as writers, but not many as actual people or friends.
So keep your eye's out for the snakes in the grass, and stop worrying so much about when your going to go out and paint next. Your mind and body will let you know when it's time, and you'll feel even better about yourself when you know it's all on your terms.