Jesus man, I know what you mean, I would drink till like 6 in the morning finish a 26 of rye, and sleep for 4 hours, stumble into work and do an 11 hour shift, and i'm a cook at a busy restaraunt (short order).....I could do it, but now I fear the morning after. However I found that as i've cut my drinking my hangovers get weaker, maybe because I get good sleep and my tolerance is down resulting in less booze. An interesting fact every male in my family tree for 3 generations had a drinking problem at one point or another. I never got it. My cousins did also but are now over it. However coming from an irish background we really did'nt see it as a problem, studies show otherwise. But i'm still not convinced they were all problems.
I must admit the food is killer during the night. I usually don't care though as it helps with the hangover. I have found cutting it back from 3 nights a week to about 1 has helped alot. I actually drank for 26 days straight once, no less than a 6 pack. (during my trip back home)