So as I originally planned before I started my university course, I went ahead and applied for the JET Programme (Japanese Exchange and Teaching) so that would involve becoming an Assistant English Teacher.
It's been pretty hectic trying to collect everything together for the application form, so many documents and I had underestimated how long it would take, but I prevailed! In the end, I travelled to London and handed in my application form to the Japanese Embassy in person (so I know they received it now).
I'm both relieved and nervous at the same time.
Really really really hope I get the position. Though the interview process comes next.