WOW! You sound like my dad. He drinks nothing but coffee from the moment he wakes up until the moment he goes to bed.
I know today feels rough, but I think if you stick with it, because that's WAY too much caffeine sweetie, your body will adjust and you'll be alright.
It's like when I kicked my ciggies. It was rough at first because of the adjustment, but I made up my mind that it was for our baby and I've gotten through it pretty well.
Don't worry about being a bit off on the board... it's all good.

We are more than happy to cut you some slack when you are making healthy changes.