It’s not a career unless you are qualified at MA level or above.
Don’t get fooled into thinking that it’s all roses, its a tough industry and full of bullshit. If you are at a private school/academy/after school programme, then it’s a business and you tow the line. If you are in the main school of a government ran school then it’s all politics.
Thailand, ok place to live, spent 4 years or so there, bollocks wages and far too many knobbers.
Korea, ok place to live, but you have to forget your westernised beliefs, good wages, loads of American and Canadian knobbers, but wage affords a decent enough a lifestyle.
If you are after recognition of your qualification at a basic level then do a CELTA or Trinity ESOL, the other ones are crap and don’t really have the recongition the later two do.
Give it a go, be prepared to walk away, and remember it’s not home, your culture or how you like things to be, if you can accept that, and don’t spend your time complaining about how stupid the natives are and why do they do this and that, you will have a great time.