When somebody posted nude pics of me online 10 years ago, I got scared too. When also some video clips with close ups of my body and face while I gave oral sex were posted on a pornsite mentioning over 100.000 downloads in a week I got very scared. But nothing ever happened. With 7 billion people on this planet it is seeking for a needle in a heap of straw. I go online on dating sites, I undress, show my body and face and eventually meet with guys. On the nude beaches, in sauna's or in the gay bar during a nude theme night: everybody can see me naked and with my face. Who cares?
Honestly I got attempts of black mail, I kept calm and reversed the treat as the one who filmed me in a gay bar would have to explain what he did there. Whet I don't do is: 1. I don't give my phone number 2. I receive no sex dates at my private address. If you did, I would never have privacy anymore.
On webcam sites, I can see how many onlookers there are and often I broadcast on different sites. It is pure cybersex and the safest way to have sex one can imagine. So yes I think you are a bit too paranoid, from my own experience I can assure you can be more relax as after 10 years I know I worried for nothing when I first get exposed online. My avatar shows me as I am.