I took early retirement four years ago and one thing I've found is you can look back at work with rose tinted spectacles. When I start doing that I think about the pain of travelling, the stress which was sometimes overwhelming due to sickness and bad rostering, moronic bosses, although towards the end I was as good as my own boss and the odd dickhead who ended up on my watch.
As a single person one thing I do miss is the banter and chats, the laughs. I lived on ships when at work so the crew becomes an extended family. I miss the camaraderie of challenging situations weather wise and sorting out problems, the self satisfaction a good shift can bring. It is beautiful though to not be answerable to anybody, to have total freedom of what I want to do each day. That of course is tempered by the present situation.
As I said in a previous post life is short with no guarantees. Too many people flog themselves to death to live a great retirement and don't make it. The main one is paying off the mortgage as that or rent takes a big chunk out of your often smaller income. A nice wad of savings helps for life's luxuries but once my state pension kicks in, if I make it, it will be very comfortable.