It might not make you feel a whole lot better, but try to keep in mind that your family isn't the only one with these issues. Alcoholism and depression are much more common than a lot of people think, so there are a lot of people out there (and probably a few in here) who know what you're going through and can offer support if you seek it.

Sometimes you need to ask for help too, but it's important to remember this isn't a sign of failure or weakness. It took me over 20 years to ask for help with my extreme depression, and I'm glad I did otherwise I probably wouldn't be typing this now.

Try and keep positive buddy.