What I've been doing lately when I get the urge to drink/use drugs I make sure I think of all the bad times I've had while drinking, in particular, my most embarrassing moments. As alcoholics, we've all probably had a ton of them but a few probably stand out and are a lot worse than the others.
It seems like you have some you can use. Next time you get the urge think of what happened with that gang and think of you turning yellow. It should make it easier to resist.
Also, like others have said come up with a plan. Remember though coming up with a plan is only half the battle you have to actually go through with it for it to work. It's easier said than done but it is doable. Others on here are living proof of that.