Register your self an account at
http://www.pprune.org and look for the Cabin crew forums, there is a few threads in there that will help.
Visit your careers library at school and ask them, if they don't have anything then look at airline's websites and check for vacancies.
You don't need a degree, language skills would be an asset. The more languages you can speak, the more useful you are to an international airline.
From speaking to people I know who work as cabin crew, the pay isn't great, but the benefits are good. Assuming you get a long-haul job, then you get short breaks around the world and expenses whilst you're there.
Hope that helps