If you're serious about getting the project finished before you go to sleep you need to follow these steps.
1) Don't have anything to drink for the next 30 minutes. Spend the time getting everything on desk/on screen and ready to be started.
2) Make coffee and consume your whiskey that way while working.
The coffee will be hot, so you can't drink it too fast. The caffeine will help you concentrate despite being slightly intoxicated. And the 30 minute break will help reset you a bit.
You won't be able to work while your blood alcohol levels are dropping because it kills motivation and the ability to concentrate. That's why "stop drinking and work" is bad advice.
- Advice from a functioning alcoholic.
