Utilization of the degree you have is an individual issue. Having a degree even in a specialized field will not automatically guarantee your success. I have known quite a few people with degrees in engineering who drifted jobless for a significant portion of their 20s till they found a way to land and hold a job. Job interviews are nerve-racking for some people and a bad one sends them in depression. In a nutshell, succeeding in life requires, apart from a university degree, a host of different skills that include overcoming rejection, recognizing your weak points and working on them, getting along with people, identifying a career where you excel, good work ethics and so on.