Your right, it does suck.
Being addicted to dope ... just ... really ... sucks.
Period.
That's why you gotta get this behind you so that you'll never have to deal with this bullsh!t ever again. Your on the right path, stay strong amigo. You'll be through it soon. I would start hitting some meetings of recovering addicts of some kind, if I were in your shoes.
FWIW, I've found that there's something about the process of withdrawing (and the immediate aftermath) that can put us in a pretty special place, mentally, where we end up being very receptive to new ideas, paths, and ways of thinking. Such as those presented in meetings. Maybe it's partly desperation, but I think it's more deeply brain chemistry-related. Don't let the opportunity pass you by. Most people who just up and quit, completely on their own, end up really struggling for awhile. It's not the route I personally advise.