Man,
I am closer to your situation than someone w years and years of pure sobriety so I can offer this pov...
ime...
3 days is not enough to get over the physical addiction.
Obviously, the state or whatever believe you will not die after 3 days in detox...that is a good thing.
Since you want to quit...that is half the battle already won.
If you can't stop on your own...suffering at home, hydration, eating when you crave etc. you need rehab or some loving local support..e.g. AA folks to help and direct you. This might include direct intervention...e.g. taking your car keys.
I have heard that many companies offer rehab support. Obviously, you would have to come clean with your boss.
Everyone's constitution is different...but curious...how long and hard have you been drinking?
Thanks.