As frustrating as it may be, you keep applying until you get offered something. The closer you get to the start of the academic year (early Sep to mid-Oct), the more chance you have of landing a job. To further improve your chances of finding work, avoid popular destinations such as Spain, and look towards Eastern Europe.
If (like me) you are a career changer, writing that first TEFL CV can be difficult. I used http://www.celta-course.com/tefl-cv.html
for guidance (there's even a sample CV to download on the bottom right-hand side, though I would recommend writing a slightly more detailed profile/objective than theirs). I'm generally pretty good with cover letters, but I did refer to http://www.jobs.ac.uk/blogs/tefl-journe ... -template/
I learned a long time ago not to be put off by adverts asking for experience. Obviously if they want 5+ years' experience plus a DELTA, there's no point in applying, but you will find that the 'minimum of 1 year's experience' is often negotiable, especially if you have a Pass A or B on the CELTA.