I think you'll find everyone of us tried moderation fountainhead
I found out two things - I can't moderate and I can;t learn how to, and I don't reset after a period away from the booze - my relationship stayed the same, but my alcoholism progressed if anything.
If life is going well for you on so many fronts now you're sober, isn't it madness to risk everything by going back to drinking?
The brain fog and the sleeping issues will get better but they're unlikely to keep getting better if you reintroduce alcohol.
If you're worried about either of those two things see a Dr, FH.
Drinkings not the answer to anxiety - it actually makes it worse - and it's not the answer to boredom either - doing things & fining interests is the answer to that
I know it's a long haul - but think about how long you drank for - if you're like me you dug a deep hole - it's gonna take a little while to climb back up in to the light.
Don't lose heart now
D