IG2H is absolutely right...and maybe that's why you've failed in the past, relying on luck rather than actively quitting every day. I love the intro however because for many of us, it will be a self-reflection, themes of invincibility and can quit whenever I want to mentality. We've all been there; and many of us have started quits in fear of the inevitable.
So, what do you do about it...you do the homework that IG2H assigned you. Post Roll. Live it, learn it, breath it. Quitting is something you need to do every day. As addicts, we actively fed that addiction every day and to be better than your addiction you have to actively quit every day. Remember that, ...every day. The day you "stop" quitting is the day you cave.