I work in a secondary school, it all started when I volunteered to help out in any role in my kids school, I started helping in the classroom, did a bit of dinner time, then when someone went off sick in the school office, they asked me to stand in, within that time I tried to learn all I could, when the lady returned from sick, I went back to helping out.
Then a job at another school came up, not many hours, but I got my foot in the door, they sent me on many training courses to learn the school computer systems (SIMS), I then saw the job I'm doing now, with the experience I'd gained at the other two schools, I walked straight into this one.
The advantage I'd got over all the others interviewed was that I'd got SIMS experience, which you can only learn on the job.
Look on the Council website for vacancies, even if there's a job that doesn't quite suite, try for it, you will then gain the experience required when the right job comes along