I wonder what kind of mental strength AV actors have....

No matter how desperate they are for money,
their face and their precious "parts(?)" are being exposed raw to the entire world....
Where does that kind of guts come from?
It's not like they are treated as artists like mainstream actors,
and I've been curious about this for a while.
I'm just wondering what kind of mental state they must be in to do that kind of work. ㄷㄷ