A person who puts a large amount of effort into achieving a certain image, or counter-image, to the point where it is obviously contrived. Rather than achieving an image through genuine personality, the try-hard consciously attempts to fit a certain style through deliberate imitation, forced style, or scripted behavior. That is to say, he/she is trying hard to create an image.
I'm thinking of a highly dependant personality, whose anchor, in this case is the adulation of WF's posters. To maintain a healthy image of one's self, he tries terribly to keep up the cool, sarcastic guy image while he's dying for admiration, acceptance and confirmation of one's acts and personality.