Once I started spending time worrying about my own bottom rather than my ex's bottom, I hit it. And found the courage to leave. His problem was a distraction for me so that I didn't have to focus on myself and my own problems. Change is hard - for both addicts and their partners. Avoiding change can be an addiction too.
You can feel sorry for your husband and not allow your children or yourself to suffer consequences from his selfish addiction.
It's the same for you as it is for your husband. Your husband has numerous excuses why he won't quit using drugs and you have numerous excuses why you continue to stay even though YOU SAY it's insane and bad for you and the children. It's an addiction. So I'm glad you are getting help. I hope you keep going to your meetings. And maybe try working some steps... Action not words...