Hi Nyah,
I will pm you to fill in some details but as another black BBW, older and bigger than you, let me say, I get by, you are definitely over thinking and generally offer GFE (though I do some kink too) sometimes though it is hard to market as a bigger woman but you need to understand that those who want to see you will love your body, that is why they have chosen you and unlike smaller women, they don't pounce on every little imperfection because they are not seeking a "perfect body" they are seeking YOUR body. That means we miss out on a great deal of judgemental pricks that other women deal with, which if you knew how impatient I am with these men, you will know is a massive bonus.
As for London, it's a big place, I have worked very close to home and never had a neighbour through my room and only had one guy I went for coffee with once so, it's doable to be anonymous here, you just need to the right place. Ok? You'll be fine, honest. x