First things first. Do you need to find another job or do you intend retiring? It all depends on your finances.
If seeking paid employment, try writing down all the things you like doing and are good at. Then look for jobs in a sector which offers the best opportunities.
You could register with an agency which will help you compile an up-to-date CV and coach you in interview techniques.
If you intend (and can afford) to be a lady of leisure, there are dozens of groups, clubs, meetings, volunteering positions out there and, no doubt, plenty of suggestions from GNers who are active in those sectors.
I wish you every success in your search. 

Reforms response to Rachel Reeves’ heckler.
