I used to be the same, very shy and hated cameras. Even hated having my photo taken.
And then somewhere in high school we had a career week where people came to talk about their careers. And these was this journalist and I was instantly mesmerized by her. I knew what I wanted to do.
That did not cure my camera shyness though, not at first. I had finished college and I was still avoiding cameras. But at some point I got a really nice job offer as a
professional fixer and video production assistant and that changed my life. Not having to speak in front of cameras but being all the time around them gradually cured my of my shyness. So consider working around cameras without the pressure of knowing you have to be in front of them.