Hi Leo,
I completely relate to what you're feeling. I've had 30+ years of binge drinking, never getting any considerable time under the belt. It's now day 47, and I'm beginning to feel a tiny bit more settled.
I've had most of what you've described, brain fog, lack of energy etc. Also I have been prescribed Anti-Depressants for anxiety for a number of years. I firmly believe that the alcohol was wiping any effects of that off, because now I think they're kicking in properly.
Hope this might give you some reassurance !
All the very best,
Johnnie.