I'd buy a big house with a swimming pool, conservatory, hot tub etc. and host the occasional paying sex party whilst otherwise doing my own merry thing 90% of the rest of the time. I'd also get a little pied-a-terre in central London and see a few cherry-picked clients there. I certainly wouldn't want the amount of sex I had to diminish, however it came about.
Otherwise I'd travel, and perhaps give in and get a couple of cats. If I'd had the room, I'd also build a special little house and get some ferrets!
I'd also out myself and be a lot more vocal about sex workers and their rights, decriminalisation etc.