Everyone gets anxious when moving to a new country or being placed in situations which they dont feel comfortable in and its human nature that we get all freaked out about it. I will probably be moving to America in the next few years to persue my career and I am quite anxious about how I will cope too.
The more we get placed in these situations, the easier it gets to cope with them. When you first learn to walk, its quite hard but as you do it more and more it gets much easier until you can do it without thinking about it. The same concept with riding a bike, shooting a gun, fishing, putting up a tent and pretty much everything in life.
Don't stress too much, take each day as it comes. Best of luck mate