I walked into a finance job by chance, not knowing what i was getting myself into untill it was too late - but I was very FOB back then, so I can be excused, I believe.
If you are a teacher, and you want to move into finance, then start looking for editing jobs. They need editors, and a few of them get promoted up the chain, leaving holes for newcomers to fill.
I have seen those jobs advertised in Taipei Times, forumosa, and a few other places as well. The better ones are occupied by networking, but well… Not all are, and they prefer experienced editors in those, where networking and headhunting is used to get in.
A friend of mine recently got an entry level, no experience required finance job off a newspaper, and… well… he’s well paid indeed. Hours are long though.
They would love for you to have a finance background, but well… Not needed, actually.
Also, it’s best if you know some Chinese. It’s very important for moving away from the editing job, and I guess that you don’t want to be stuck in a 14 hour correction typo job for the rest of your days. Also, once your chinese is up to shape, you should consider a CFA.
The bad news is that finance tends to ne a men’s world.