A. It's not going to be that strange, you've got a native guide.
B. I ain't family but you're not going to be alone.
C. You'll be too busy cooking me dinner to be homesick. And I've got about 200 hours of anime for you to watch while you're job-hunting.
I can do some wandering around, too. Check out what's in walking distance, practice using the bus system.
I'll still likely be thinking "what have I DONE?" a few times a day, though. Just goes with the territory!
Hope the job comes fast, though a few weeks of exploring wouldn't be bad.