After a few 24 hours, I am still going by 24 hours at a time.
I get all muddled and fuddled if I think further than that.
Someone posted this awhile ago and I'm sure it comes from some wise AAer, but it helps me through the roughest patches... "Anything you put before your sobriety, you will lose." Once I started to put my sobriety first, all those promises started to come true. I'm amazed every day.