there's some complex around coffee and alcohol, if i drink coffee, i crave alcohol to calm the jitters... pretty much the two have to go at the same time

and the caffeine - that's to get me working, so it's a loop from stress of work to wasting half my time not really there, and mouthing off at people 

 When you get your blood sugar more in line, you won't need the caffeine so much.  A lot of people need caffeine to raise them out of a blood sugar crash.