When I retired from paid employment, just before my 70th birthday, I thought I had prepared for it well. I was still carrying out some volunteer duties for a sporting body -which mainly involved things at weekends. So< I threw myself into having a busy life, delivered meals on wheels once a week, joined U3A, a reading group, knitting circles, etc. Did have a short stint at a charity shop. One of my main aims at the start was to try to build new friendships. Unfortunately, my closest two friends had died around the time I retired. Found that although I made many aquaintences, no new friends. Perhaps it was to do with me, but I do feel that friendships are based so much on shared experiences and memories.
As time went on, I had to give myself a good talking to and revise my expectations. For the first few years I was also looking after my g.daughter for a couple of days each week as in (single) Mum worked.
My health has deteriorated over the past few years, and some thing (which I had put off, meaning to do - eg: London Walks), became an impossibility. It also means that I do not feel it would be fair for me try to do anything that involves a regular time-slot.
I do try to have something most days to work round, a knitting group, coffee discussion group, going to the supermarket, etc. but I must say that I really feel I have outlived my usefulness to society.