I can not emphasize the importance of interview experience. Job interviews are intimidating for everyone but you DO get better the more you practice. Questions become familiar, you feel less nervous, you get your story straight… So even though you may think you are wasting time, are not interested in the role/company/location, do not turn down an interview opportunity. Try to speak with as many people as possible, whether they may be recruiters or hiring managers. If possible meet them in person.
How to get interviews? Check out your local Job Fairs, register to job fair websites, check with your school and also do not ever hesitate to stop by at local career centers.