So sad to hear you are worried , I'm going on a whv 3weeks today and its daunting , I have a partner here but we arnt on good terms so the break will do us good but if I like it I'm going to stay! Please don't give up, you obv have a yearning for something more so atleast try it , think of it as more of a long holiday to start , for me I'm going to work ( I've got a job set up) and see if I like the culture! Things never change here and we are connected to so many people , but don't you want to curries sometimes and make your own life.
As I said treat it like a nice long holiday and go from there !
Mark x