Read this, change your job prospects:

20, 30, 100 Interviews and no job offer?

Without knowing you, we can identify several simple solutions:

Evaluate your resume as if you were the person with whom you will be interviewing. Chances are it repels, not attracts. It is poorly done, poorly organized. It is your first impression. Have someone of substance look at it and make suggestions. Download an article on the net that has templates. Use one. Print it on good paper. The file should be in WORD format. PDF will also do.
How do you present yourself? Articles on the net will tell you the right way. Get your clothes in order. Shave, wake up, be alert. Comb your hair. Take a shower. Walk with purpose.
You are making a presentation, not having a coffee. Be crisp, enthusiastic, focused. If you are an hourly worker, don’t dress as though you are going to a construction job, or the club. Don’t act or talk like you are hanging with friends. The people who are interviewing you are responsible adults who have worked hard to get where they are. Show respect for their hard work, even if they are not as “hip” as your friends think you are. Lose the attitude.
Organize a verbal presentation: The interviewer has one thing in mind: Can this person do the work and be a productive, issue-free employee? Know what you can do, your accomplishments and support those statements with fact. Having a verbal response to direct or indirect questions that runs around in circles will kill your chances. “I’m a good worker” or “I can learn” or “I can do a lot of things” may work in social circles, it will kill your interview chances.
Listen to the questions: What are they really looking for in you? How will that answer sound? Does your answer show you are productive or does it show a lack of focus? Employers want to hire people who want to perform, not just get a check.
Interview as if it is your last chance to be employed: Get your game on. Focus on the results you will get for the company. Be a good listener, pay attention, be earnest. Being “casual” about an interview is a killer. Sit up, look people in the eyes. Engage. Practice with someone who is a hiring authority, not a friend, not a relative who has never been there.