I made my first film when I was 35, so I firmly believe that you don't have to be one thing in life. If you're doing something, and you have a desire to do something different, give it a try.
I want to put any number of assorted 'ists' - such as relativists, deconstructionists, destructivists, postmodernists, the more maudlin kind of pacifists and feminists - firmly in their place.