Hi Sarah. I am struggling with this too although I am not able to physically remove myself to start fresh as much as I want to. Know that you are not alone in feeling like this.

What I find helps is using technology in keeping in touch with old friends for the familiar support. Joining a class (yoga is great) where everyone is new helps in making new friends. Exercise lifts the mood and helps in feeling and sleeping better. a responsive pet (not a fish please) provides a lot of love too. Volunteering also provides perspective, a sense of purpose and compassion. Finally starting stuff that you have been putting off like writing that novel or painting is a wonderful way of fulfilling your interests and gives a sense of accomplishment. Watching motivational clips and uplifting books help keep the negative away. If you are religious, prayer can bring comfort and the church community can lend a sense of belonging.

What I find is that at the end of the day, we really need to find peace within ourselves and this will take time. It can be a lonely journey at times but we will emerge better. Hang in there.