Hi Mike and Welcome,
The thing that came to me when I was reading your post is when you said you use crack and then you're back in recovery for a week or so. Being in recovery is a lot more than not using alcohol, pills, etc. In fact, the 'not using' is only the beginning of recovery. What other things are you doing in your life to help your recovery? For me, it takes work, every day, working physically, emotionally and spiritually to stay in recovery, to grow, to move forward.