Someone once asked...
Someone answered with kindness...
Something I like to live by is always taking an opportunity when it comes up. Now I don't know the whole situation here, but I guess that it's got to be a pretty big opportunity for you to be considering moving. And you've got the experience of moving already. You know that you are able to do it. And with that experience, it will probably be easier this time. There's not much more I can say here without knowing what's pulling you towards this new place, and what's pulling you back. Try writing two lists on a piece of paper of the benefits of staying, and the benefits of moving. Don't write down the negatives. Just put the positives on paper, and see what sounds better to you then. And speak to your family if you haven't already. Tell them how you feel and have a proper discussion. I hope some of this has been reassuring. Good luck.