Thanks all for your comments and links.
I'm done with hand-wringing and breast beating and what if's. I've decided to, or at least am well on the way in trying to, embrace my uncertainty about the future.
Now all I need is to receive my postal vote form, so that I can put all my angst to good use by putting an X in a little box.
Just off to nip over to the Remain thread...
Digital Assets Forensics – Advanced Crypto Tracking and Recovery Services

you must vote Humbert ......... vote Leave!