What about getting some support with detox over a long weekend or with some days off, and attending outpatient?
I also found alcohol "quit working" for me in terms of a buzz, or even relief and my
paranoia and fear kept increasing the more I drank.
The good news was it helped me quit for good--no more reward
made it easier.
Please do whatever you need to in order to stop.
This does sounds like late stage--
Best to you