Make it more of a sales letter than a CV. Proof read it yourself a few times, and any parts that you accidentally skim read should be removed.
Maintain your persistence. Even if you heard nothing from one company for one job, apply for another if they advertise another job.
Cold send CVs and cover letters to companies you want to work for. You have nothing to lose.
You should be sending out 15 – 20 CVs per week. If you cannot find the jobs you are looking for, then cold send cover letters and CVs.
Change your CV every week so that you can use trial and error to see which CVs bring the best responses. Keep a log of which CV you send to which company so that you can look it up if they contact you.
Apply for jobs that are above what you think you will get. Even if you have had no management experience (for example) you should still apply for those jobs. Even if you do not get the job, you lose nothing through trying, plus you may even get the job with a little luck. If you get an interview for one of these jobs, then be honest and sincere and look upon it as interview practice if you do not get the job.
Write a CV specifically for each job. Angle your cover letter, qualifications, hobbies and front page blurb and about-me section towards the job you are going for. For example, you should say you have a water based hobby if you are applying to be a lifeguard, but not so much if you are applying to be a babysitter.
Make sure you have short and concise paragraphs, and that your Resume is easy to read and engaging. You don’t have to stick to one page if you do not wish, but section your CV so that it is easy to navigate, such as one page for qualifications, one page for experience, etc.
Highlight past achievements, especially relevant ones such as worker of the month or good attendance records.