I feel the same mate.
Back at the start of the lockdown it was a bit of a weird novelty. We also pretty much had blanket sunshine and feel like we were living in Spain during the 1920's (before cars took over the streets etc). Quite an odd time.
Now we're all jaded and add the shorter, darker days and it all adds up.
This is why we have winter festivals...to celebrate 'something' to lift our spirits in the dark, mid winter.
With those being cancelled it's going to be tougher (I know xmas won't be cancelled, but it won't be the same).
I enjoyed my summer evening dog walks so much. Often go out for 1-2 hours with my daughter's dog. Walking off piste, bumping (socially distanced bumping) poeope it was quite beautiful.
Only seems a few weeks ago I was in shorts and sandals doing that evening walk. I thought about this last night doing the same walk, but this time in the pitch black dark and slightly chilly weather.
I decided to embrace it though and will do my 'summer evening dog walks' throughout the winter (often walking through dark woods with no one else in sight. I now do a 11k 2 hour walk with the mutt and these are helping my wellbeing considerably (as does running).
We can see the light at the end of the tunnel and hopefuly, when the dust has settled, we'll be better of from this grim experience. Never a bad thing to gain more empathy through such experiences.
