In our school we have many past students who want to go into teaching. They work as TAs within lessons. My advice is to go and speak to your nearest school - primary or secondary - and ask whether there's an opportunity. You could get started by doing some voluntary hours to get experience which will help when it comes to getting a job. This route greatly depends on your local schools. It would be easier to go to the school which you attended for this "back door" approach, but if not, check out your local education authority web site. They could have advice there. It's a huge growth area within schools. Being a TA does not necessarily mean studying, although once you get employed you can take qualifications to move higher up the scale. Experience is the main thing, so any work you've done with young people will really count, although it's not a necessity. Hope this helps.