first thing: you are crazy. not sure what are you dong but 16-18 hours workday will costs you a substantial amount of your life. i would say a decade min. maybe even 30 years as you will get a heart attack at age 50.
second thing: you always complain that some games are not being sold on steam in Japan. why would you care if you don't really play them?
Crazy or not, it's a necessity. But I very much doubt translating/coding for all that time is going to lead to a heart attack anymore than say, watching TV or playing games for the same amount of time will.
As for your second question, I may not get to play games as much as I'd like to right now, but one day I will. Besides which, I'm not the only person in Japan to use Steam...