I think that alcohol can indeed hinder our progress.
We may think it helps, but, it only masks the problems in our lives.
When we awaken from our drunken state, we still have the same problems, and often, more - due to the drinking!
The hangover is a simple detox. It causes the body anxiety and can manifest itself in anger, depression and other emotions. Getting sober can clear those emotions up and allow us to see the light of day once more. And what a beautiful day it can be!
Alcohol is indeed a depressant. If you suffer from chemical depression, alcohol is not your friend at all. And if alcohol is causing your depression, it's time to recognize that you may need to put down the bottle. It may be causing a problem in your life.
Shalom!