Everyone goes through a long application and interview process before finally landing the right job. Consider this your practice run until you are hired. Learn something from each practice. And, sometimes, staying in contact with those that you previously interviewed with is an avenue for another interview/job. Ask them why you were not chosen and what you can do to improve your chances of being the one for the position. Let them know you are really interested in the job as the person they hired (if they did hire someone else) may not stay. Offer companies that are not sure about your work performance to let you volunteer for a month if your financial state can handle that. Then, you can show them your work ethics, skills, and the company doesn't have to go through "all the hoops" of paperwork until they are sure they have the right person. Sell yourself and your skills.