Nyororin, You seem to have gone through some tough times. I would like to say well done for the amount of effort you put in even without the support of your family. I am really pleased things worked out for you.
. I feel more motivated now.
If I do go to Japan, I can't imagine staying there for longer than two years though. I would miss my own country, family/friends too much. If people have little attachment to where they come from, then relocating to another country is not too bad. The longest I had been out of the UK in the past was for around six months, I enjoyed my time abroad... but I still remember missing everyone loads.