Hey,
Yeah I felt the same before I came here.But when you'll come here you'll see that you don't have to be nervous at all. People are really very nice.You should also think about taking language classes - there's something starting in march in Luxembourg city,french,german,spanish ...It's called Centre de langues.I'm taking french,you really need it here - in most of the stores they speak french,but at home they mainly comunicate in german and luxembourgisch(which is like chinese with a german accent for me:) - but I'm sure you already know all of that.So if you have any more questins as a future au pair ...:)+ have a safe trip and see u when u come here:)by Koni