Hey Coming Clean,
If you are reading the Big Book you are reading the only step guide you will ever need. Cocaine anonymous is a fellowship that uses the Big Book as the basis of its recovery program, so does overeaters anonymous. The program in that book is not just for alcoholics, it is universal. There is also all addicts anonymous which I believe is up in your country. He is CA:
Cocaine Anonymous - Local Area Phone Numbers and Web Links Welcome to Cocaine Anonymous