I felt very much that same way. I think part of my problem was my expectations were not in line with how things progressed: I expected more energy, a little spike of happiness, something other than lethargy - come one, I quit drinking so I deserved something!
The good news is that my "reward" came along slowly and things did turn around. Depression lifted, energy increased, outlook improved. It was slower than I had expected.
I was also a solo drinker so I didn't have to change my social circle. Most don't drink.
Hang in there! 7 weeks is fantastic.