We too moved to a market town in the South West just pre-covid. We'd just retired and chose a place we knew very well from a lifetime of holidays. We thought it would be relaxed, sociable and a good place to contribute to the community. Living there was very different from visiting. We were so lonely, isolated and missed the buzz, culture, energy, optimism, connectivity, youth and vibrancy of the city. The winters there were worst - were long, cold, empty, dark and lonely.
We tried to make friends, but just found we couldn't. As youngish, retired city people were very different from the people who had either stayed in a small town all their life, or who had moved there for the isolation, peace and quiet life. What was perfectly right for them did not suit us...neither way wrong, just different. We could not make it work.
Society there seemed very structured, class driven almost and you needed several generations in the church yard before you were accepted. We both did voluntary work, joined in with activities and tried to socialise with neighbours. It was like hitting your head against a wall and we were starting to get down about it.
Two months ago we moved back to our home city. The feeling of belonging is wonderful, the joy of waking up every morning with all the facilities of the city at our fingertips is overwhelming and everything feels cheerful, right and easy. We weren't finished with the city, we just needed time away to appreciate all it has to offer.
I'd say don't stay where you're not happy and fulfilled, life is too short. I'm sure you'll make the right decision for you.