Understand the night shift is a tough one to do caffine free.
Coffee does have carbs and I too have to watch it. Caffine is not my nemesis in regard to weight loss and many folks dont get burdened by it but it is not good for you health wise overall.
I found a good site:
http://www.ineedcoffee.com/03/coffeediet/
Thats helped me get offa the wild caffine intake I had pre Atkins.

Now the cream question-
GET RID OF THE MILK-
it has lactose and that ose means SUGAR
Mix your cream with water-make your cream 1/4 c or less- experiment then 1/4 c water.
Pretend you are trying to make instant pudding and all you have is cream-what would you do? You would have to add water or it would be too thick. Same with your coffee.