Hi Rechelle, welcome to SR. As a mom I relate to how you are thinking of how your children might feel by any decisions you make.
Your decision to come to SR and to attend Al-anon is a step in the right direction for your family and most of all for YOU.
Your marriage sounds like mine was 6 years ago and hard to admit I didn't see the alcoholism and it progressed and our marriage and my self just continued to deteriorate. Counseling in the last year and Alanon along with faith in my HP in the last 6 months are just starting to give me clarification to make good decisions and some days I make no decisions and just peacefully enjoy my children.
I wish you the best and I know many others will come along and share their ESH with you.