Applying for a visa in Thailand or Japan with a postgraduate certificate?

Hello everyone,
I’m a 24 year old student from Belgium.
I have been toying with the idea of teaching English as a foreign language overseas in Asia for quite a few years already. Three countries have crossed my mind: Thailand, China and Japan.
All three of these countries have a bachelor’s degree as a minimum requirement to obtain a teacher’s visa.

I do not hold a formal bachelor’s degree. I do however hold a postgraduate certificate which is generally ranked as higher than a bachelor’s degree. I also hold an associate’s degree aside of that.

My associate’s degree is in paralegal studies and my postgraduate certificate is in strategic management and leadership.

I speak English, French and Dutch fluently and also speak a little bit of German.

Do I stand any chance to be granted a visa in Thailand or Japan to teach there as an expat?
I would like to teach high school students and / or primary school children.

I’m willing to get myself TEFL verified on level 5 as well.

Kind regards,
Vincent.