Yes, so far it is good.
What subject do you study ? Is is master program or PhD ?
Which university do you study ?
So you can speak and write Japanese.
Long time ago when I worked for Matsushita Kotobuki Electronics, I learnt Japanese. The managers are Japanese, they speak English or Indonesian to me. If there were visitors from english speaking country, I was assigned to accompany the visitors.
Since December 2014, for Indonesian citizens if go to Japan are free for the visa. Is it the same in Thailand, free of visa to Japan ?