I think that if you are still enjoying your job ( which you say you are), then continue with it for a while longer, maybe changing to part time at some future date to give you more of a feel of what retirement could be like for you.
You seem concerned that you might have to return to the office - has this been suggested or is it just something you think could happen? Perhaps a conversation with your boss or HR could put your mind at rest about this. It might be that it suits them for you to be at home.
The advice to seek the expertise of a reputable financial advisor is a very sensible one - they will be able to advise you on your options.
Anyway, I wish you the best of luck, and hope that you can reach a solution that you know will suit you. As another poster said, only you know what will make you happy. One persons idea of what to do in retirement will be another persons idea of hell, so go with your own instinct on this, once you’ve got answers to all your questions from professionals who can give you answers or at least options to consider.
If you are dealing with narcissism, let’s all help each other.


. It’s easy enough to do something about that, though - I’ve taken courses, joined groups and so on, so I have less ‘time on my hands’, without having to set an alarm. There are things I miss about work, but I do part-time lecturing/consultancy which ‘keeps my hand in’, and keeps me in touch with others in my profession without the stress or responsibility.