Lusher I mean this from a place of support and sincerity so I hope I do not offend you here,
You say;
"I am in no way second guessing my decision to become and remain sober"
Unfortunatly I think you might be without realising it.
You say you can no longer look forward to a 'nice' weekend? Well I imagine there wasn't anything nice about them when you were drinking. Remember the worst hangover you've ever had, the withdrawals, the shame and guilt. Who would look forward to that?
What do you do for fun now you're sober? If there isn't anything that you do for fun sober then the answer is to find something you enjoy.