I was commenting too much, and thus can't reply with the same account, but I wanted to say I do agree with the fact that while you can't control what happened to you in the past (and maybe even what led you to drugs in the first place), your addiction is yours and having a victim-complex (warranted or not) is pretty detrimental to getting clean.
I was pretty fortunate in that while I may not have had the picture perfect childhood, my family was always there for me and in no way shaped my decisions to use. So even if I wanted to feel like a victim, I'd get snapped out of it pretty quickly.
When I look back at what set me apart from most others (I've been in numerous treatment centers, jails, and hundreds of NA meetings), the one thing that stood out to me the most was my support system. Others probably had a greater desire or more to lose, but because desire alone isn't enough, didn't always make it through. One example, my mom would drive hours each weekend to come visit me in treatment. That just didn't exist for the others I was there with.