((Nod))
Good for you! Admitting you need help is painful and difficult, but you did it, and you made it through the first week!
I have almost a year in recovery. As others have said, the first step is getting into some sort of program and remaining sober. After drinking so hard core for so long, maybe inpatient is right for you? If not, AA is a great place to start and get your 90 meetings in 90 days, get a sponsor, and go from there.
The best thing you can do is get well for your husband and son, as well as for yourself. Once you are standing on solid ground, you can worry about actively trying to make amends to them.
((Hugs)) Hang in there. You are definitely not alone.