dude just quit that job which is weighing you down you deserve better

It's very hard to find a full time job in country like korea or japan where the competitiveness and demand for job are very high. That's why people make such a big deal about college degree there. Without a good college degree from a respectable university, you are hardly will be hired to be even just a normal office worker.

To put it simply, too many people and not enough decent pay job.