I would note that vacationing somewhere and living there are two different things. I came to Japan a few times before moving here (and failed my first time at living here due to visa issues). Even after moving, there's a honeymoon period and things eventually just become normal. In other words, there are two things to keep in mind: don't over-hype anywhere and build it up too much in your head or you're asking for trouble and any problems you that aren't physically confined to your home will follow you eventually so be sure to work on that separately.
That said, it's certainly possible to move across the world. Break any goal down into achievable chunks of individual items that need to be done and track progress against that. Good luck!