I had to work construction at 5:30 in the morning and I know all about this. Here are my solutions.
1. If you're drinking, do not get between 2-7 hours sleep. Any less than two and really you are not getting enough REM (deep) sleep to make you feel really bad the next day, and if you get drunk enough you are still so shitfaced at work that you are fine until 10 or 11. In that case, sneak a mickey with you and continue being drunk for the rest of the day.
2. Smoke a joint when you wake up, it makes you feel better. Better yet, lace the joint, with either coke or dust and you will have a wicked time at work, provided you don't die or have to go to the hospital.
3. Coke, methadone, crystal meth, Heroine, ecstasy, Pcp, among others will allow you to go to work, not feeling tired and not needing to sleep for days. I recomend crystal meth, it is the cheapest and best.
These helped me through my year and now I am fine. I found this computer at an internet cafe and it still had 2 minutes left and there is about 3 dollars change in the charity cup that I am about to steal after I am done typing this. Oh and you're welcome.