Bit of a late reply, Kandinsky, I am in the same position as you. Didn’t matter when I was working, work was all consuming. I struggled with retirement, made the effort to join a couple of groups, enjoyed the activities but nothing friendship wise developed. I also did some voluntary work in a school, really enjoyed it but people just turned up did the work then left. Seems that others have very well established friendship groups. I have always struggled to make friends & suffer from social anxiety which has got worse as I have got older. Before the first lockdown I was busy which helps with the loneliness, now all the groups have stopped it is difficult. I am trying to be accepting of this situation, at 63 I can’t see it changing.