what exactly are you nervous about? you are coming to a job, a work visa already sorted, right?
when i came, the internet was just getting going. i had no job, no work visa, and only about $5000HKD to my name.
i didn't FREAK OUT! i was excited. it was an adventure. i was coming here BECAUSE it was something different. i didn't want to be one of those people who never left their hometown and were happy watching Nat Geo for a taste of life outside their comfort bubble. i wanted to actually experience it.
so, i guess it depends on what kind of person you are? are you one to happliy watch life pass by while you sit at "home"? or are you the kind of person that wants to get out there and actually live it?