United Kingdom, Feb. 20 -- Pamela Anderson finds acting to be a "lonely" experience.

The 57-year-old star became an international sex symbol in the 90s, when she played 'C.J.' Parker on 'Baywatch', but Pamela has always felt isolated as an actress.

In a guest essay for PEOPLE, Pamela shared: "Acting is a survival mechanism.

"We all do it. To make a career of it is a blessing. From a young child who learned to smile and carry on in the face of despair . to a student struggling, searching, experimenting and torturing ourselves in acting class - or both - we learn as we go. And there is a different route to get here for all of us. This is an industry of misfits."

Pamela has endured lots of ups and downs in her career - but the Hollywood ...