I've noticed most people who develop a substance abuse problem usually go through the same sorts of struggles. It starts where you think you should slow down your use because it's affecting other things in your day to day life (how you feel, who you're spending time with, so on). If you notice that slowing down is not working as you expected you turn to 'quitting for a while'. Which usually results in you completing a month or week or day even only to reward yourself for doing so with the substance. How long & how many 'quits' did it take you to get to a place where you seriously decided to stop?