You are still young, but these days young people are dying from alcoholism like never before. I hope you listen to some of the good advice here, especially regarding a medically supervised detox.
I hope this is not bordering on medical advice, it is more in the practical area: couldn't you take a Friday and a Monday off and do a weekend detox?
I am guessing that other people have the same job concerns as you and also need to address their alcoholism.