Indeed, there's a lot of commonalities between various addictions. I've found help in researching how women deal with eating disorders, too. If you think about it, we all need to eat- and sex, too, is a natural biological function. So, these needs being so close to us, I learn from them.
Again, I learn from people who deal with OCD (especially with mindfulness training). Not saying one equals the other, but there's a lot of commonalities between OCD compulsions and addictive compulsions. Anxiety, PTSD, and of course Alcoholism and drug addiction, I've learned how to deal with my stuff from all these areas....
There's a lot of good stuff out there, a lot of help. Never despair, always learn.