Hi Cait,
I read your post a few times through and I feel so much empathy for you and what you're going through. It's such a tough thing to do, moving away from your friends and loved ones, especially for those of us who are used to having a solid and extensive support network close by. I recently moved from Australia to Canada to be with my partner and my anxiety went through the roof. I spend most of my days alone, and at the moment my bf is working out of town so I'm alone in the evenings as well. I too have often wondered whether I should just give up and go home again, where I know I'd feel comfortable and supported again, but I think that would be letting the anxiety get the better of me. I received some very good advice a couple of days ago which was to try and do something a little different and a little challenging every day (nothing major at all, for me it was just getting my groceries from a different store or going somewhere I've never been before - just really simple stuff) as a way of creating more comfort zones for yourself. I also try to come up with at least one new thing every day that I enjoy about living here. I know it sounds silly, but you never know, it could be worth a try, right? I guess the bottom line though is that it takes a good while to get used to a completely new life, new people, new working environments - new everything really - and that you have to allow yourself time to go through the motions. This is only my humble opinion though, and if you feel like you need to go home and be around people that love you, by all means you should go home and surround yourself with the support that you need and let yourself heal and feel better again. Please don't feel as though you would be a failure by going home - taking the step to give it a go and "conquer" the city in the first place takes a huge amount of courage in itself. Acknowledging that it wasn't right for you at this time in your life is smart and sensible - not weak!
I really wish I could offer you some more solid advice on what to do in your situation, and I hope I didn't sound preachy at all but the best I can do is tell you that I and I'm sure many others on here understand just where you're coming from and really do feel for you.
Please take care of yourself.
lou lu