My sympathies as well. I would agree that, as long as you remain well and enjoy your job, then keep working.
That gives you a space to do as others have suggested and work out your finances.
I am a great fan of Martin Lewis' Money Saving Expert website, and it is well worth a look for ideas on everything from managing savings to making day-to-day economies.
When we retired we did quite a careful plan. In the current climate, savings won't give much of an income, but we worked out, for instance, major gifts for family weddings, replacing a car, rainy day fund. We made a decision about whether holidays would come out of savings or be saved up for out of income.
We are fortunate to live in an area with a nice lot of community events, and can have pleasant evenings without going far or spending much.
Some of our friends do volunteer work at local National Trust places, or community theatres, in return for free membership or tickets. A nice way to keep active and stretch finances.
Take your time, don't rush into anything; do some calculations, then let them sit in your head for a while as you think over the implications, then maybe do some more.
Good luck.