I hope you are ok. Look, at this point there is nothing to be said, other than damage limitation. If people know, ok, they know. There are worse things. You aren't selling drugs to schoolchildren, or defrauding the elderly. Practical advice would be about the routes you can now take-
A) My modelling pictures have been stolen, oh my god. Some hooker in London is claiming to be me!
B)I am doing this, these are my reasons, and I will do whatever I wish with my body thank you very much
C)Run around in sackcloth and veil trying to convince everyone you are sorry, will never do it again, etc, etc.
I am so sorry. I hope you are ok sweetie, and remember, if things get really bad you can go travelling for a while, when you come home it will blow over, and the people that remain will be the people you know are true.