Alcohol deepens depression. For many, alcohol causes depression.
You won't be able to effectively deal with any of your other issues until you stop drinking; you mind, feelings, and perceptions will change and you'll be able to move through the steps of restoring your life and your family.
If you have access to medical insurance/care, it is a good idea to get sober with an involved doctor, especially if there is the undertone of depression - a doctor can give you medication to make detox easier, and then can help you figure out if your depression was fully connected to drinking or if there are additional things you can do to address it.
If you can't see a doctor, come up with your own plan. I believe in actually posting your plan - in scheduling your days for the first couple of weeks, in going to AA meetings, and doing a couple of things each day to improve your situation. It could be something as simple as cleaning a spot in your house (a shelf, a table), taking a walk, taking a shower and putting on clean clothes, cooking real food.
Through it all, just don't drink. This will change you and will change your situation.
Good luck. There are many forms of suicide and drinking ourselves to death in miserable circumstances is just a slow, crappy form. You deserve more - happiness, pride, meaning, friends, love! You are the only one who can transform you! Why not give it your best shot - no where to go but up, right?