First of all I would say this: When you try something and it doesn't work over and over, re-evaluate your methodology, there must me something you are not doing right so ask yourself that question - What am I missing here, is it my CV? the way I am doing interviews? Cover letters? When am I applying, early? late? Am I using recruitment agencies? Directly applying to employers? Am I chasing up my applications? How can I change strategy in order to be more attractive to an employer.
I admit it could be hard to find a job and heartbreaking when you get rejected but there are a few techniques you might want to use
1. When searching for jobs online, try to sort them out by date (most recent), the early you apply as soon as a job is advertised, the more likely you might progress to an interview stage because even though some of the adverts still show as open, usually once an employer has enough people who have applied, they might be ignoring further/late applications - Apply early
2. Never underestimate skills you might have acquired in any type of job you have done in the past. It could be as basic as helping out in the kitchen in some event, organizing kids party...anything you might have done, see how you can extract skills such as communication, team building etc Employers also want someone who is human, not just technical skills like software, pc etc - Examine your past jobs and sell your skills.
3. Assuming you have reached an interview stage - Be yourself and relaxed, don't be robotic, for instance if there is something actually funny during your face to face interview, gently smile/laugh...speak to the interviewer like a member of family, polite and respectful adding professional (not using informal language). This has worked for me over and over
4. Have a workbook (word, excel, paper notebook etc) and track your applications, why? Because, as all of us are, employers/HR can also make mistakes and forget things. My current graduate job as a civil engineer was actually an employer I chased up weeks after I had applied and they got back to me saying, sorry the position you applied for has been filled in the locations you wanted, but there is a vacancy at this other location, would you be interested? And obviously I was, got a telephone interview, then face to face and I have just passed my 3 month probation yesterday. Hadn't I chased them up but rather just stressed myself for the fact that they never got back to me, I wouldn't be in this job which pays well (just under 30k)! I studied in Northern Ireland but here I am working in South England.
5. During summer and holidays between university term times, I found that recruitment agencies could be a very quick way to get job in pretty much any industry! Do try them.
6. Find something good about the company/employer to say why them, employers like it when an applicant really knows what they are about and why they have been chosen by applicants. Don't go with the mindset that an employer is choosing me, that is a position of weakness, rather go with the mindset that YOU ARE choosing the employer, without sounding arrogant, make them see why they should employ you.
These are just some of the things I could think about. I hope you find a job soon.