Mitsubishi,Valve cover replacement? 2001 Mitsubishi Montero Sport

Took everything off to take valve cover off , took valve cover off and the valve cover is like a hard plastic , IDK if I should try and pry it out as it will break into pieces , do I have to buy different valve covers on this car the first time the gaskets are changed ??

My car has 190000 miles.
My car has an automatic transmission.