International Program University Student in Japan needing job advice

Hello, I really need advice.

I am currently a undergrad starting my second year studying a political/policy science major at a Doshisha. I am a half with dual citizenship and want to remain and work in Japan as my family and entire life is here. Additionally I am bilingual in both Japanese and English but my English is far stronger. My aspirations to work in the political field after graduating is not concrete and have only heard negative voices explaining the inability to find jobs for people with my background. I was hoping to see myself work at a gaishikei so I could put my knowledge and bilingual abilities to use but after researching for hours I may have been far too naïve.

I am currently loading up classes to give myself ample opportunity to intern in my third year. Is there any insight or pointers you can provide that may better my chance at a gaishikei job or a better career path.

Any experience will be greatly appreciated.