I'm new here, too - congrats on just signing up. My mom was also an alcoholic, and I think it's the hardest thing to realize that you can't help them until they decide they need help. And that doesn't mean that they call you for help to get up or get dressed, but help to stop drinking.
Until that call comes, please don't feel bad about doing what you need to do for you and for your children. If you teach them to stop everything to help an alcoholic, they'll continue the pattern, and I'm guessing that you don't want that.
Good luck - you're in our thoughts and prayers.