A SA perspective
SA has a large number of schools - most good but there are always a few bad ones.
My advice is:
1) Do not to pay up front for any training except maybe a small deposit to secure a position. If you pay as you go you can leave at any time.
2) Make sure you are not committed to the accommodation supplied by the school - this is another way of making you stay
3) Do proper research - use the www and ask for references. Follow these up
4) Make sure you are in the environment that suits your character. For example - there are schools that are run on a semi military basis which probably suit a person just out of school.