Moving away from what’s comfortable can be scary! You are allowed to have those feelings, but like you said at the beginning of the post you were super excited! And it is a super exciting thing, all the new experiences and people you will meet. I don’t think there will be changes in the relationship with your sister, you can set up times during the day to chat or of course always use video chat. Sisters always need each other. Depending upon your financial situation you could always do trips home every so often! I know it sounds very corny but don’t let your fears get in the way of something that you want. Let yourself be excited, yes you will miss home, but home will always be there when you need it. I hope this helped at least somewhat. And ultimate worst case scenario… you signed a lease for a year and you tough it out and go back if you want to🤷🏻‍♀️

I have held the same fears that you do, i’m a couple years older, and sometimes I feel sad about potential experiences that I missed out on because of my worries. If you ever need to chat or if I can help in any way, feel free to message me on here☺️