I could have written the same question a couple months ago- the fog lasted a while for me. Same for Big Jayhawk Russ in my quit class, and Jayhawk said it was that way for him too. It can last a while.
Hang in there and keep reaching out - we are here to help. It will suck for a while, then it won't, and you'll be free. It's yours for the taking but you have to earn it. You are doing just that!
I'm glad to be quitting with you!